Home / 56,986.20-85,479.30-17,555.40

Finding the Fourth Proportional to 56,986.20, 85,479.30 and 17,555.40

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Solution

The fourth proportional to 56,986.20, 85,479.30 and 17,555.40 is: 26,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,986.20 : 85,479.30 = 17,555.40 : x
  2. Step 2: Convert to fraction form
    56,986.20/85,479.30 = 17,555.40/x
  3. Step 3: Cross multiply
    56,986.20x = 85,479.30 × 17,555.40
  4. Step 4: Simplify right side
    56,986.20x = 1,500,623,303.22
  5. Step 5: Solve for x
    x = 1,500,623,303.22/56,986.20
  6. Step 6: Final answer
    x = 26,333.10

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1.5x scale

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.