Home / 57,312,021.20-85,968,031.80-45,974,613.20

Finding the Fourth Proportional to 57,312,021.20, 85,968,031.80 and 45,974,613.20

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Solution

The fourth proportional to 57,312,021.20, 85,968,031.80 and 45,974,613.20 is: 68,961,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,312,021.20 : 85,968,031.80 = 45,974,613.20 : x
  2. Step 2: Convert to fraction form
    57,312,021.20/85,968,031.80 = 45,974,613.20/x
  3. Step 3: Cross multiply
    57,312,021.20x = 85,968,031.80 × 45,974,613.20
  4. Step 4: Simplify right side
    57,312,021.20x = 3,952,347,009,570,300
  5. Step 5: Solve for x
    x = 3,952,347,009,570,300/57,312,021.20
  6. Step 6: Final answer
    x = 68,961,919.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.