Home / 65,000.04-89,613.32-51,615.60

Finding the Fourth Proportional to 65,000.04, 89,613.32 and 51,615.60

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Solution

The fourth proportional to 65,000.04, 89,613.32 and 51,615.60 is: 71,160.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,000.04 : 89,613.32 = 51,615.60 : x
  2. Step 2: Convert to fraction form
    65,000.04/89,613.32 = 51,615.60/x
  3. Step 3: Cross multiply
    65,000.04x = 89,613.32 × 51,615.60
  4. Step 4: Simplify right side
    65,000.04x = 4,625,445,021.71
  5. Step 5: Solve for x
    x = 4,625,445,021.71/65,000.04
  6. Step 6: Final answer
    x = 71,160.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.