Home / 82,887.40-124,331.10-51,740.20

Finding the Fourth Proportional to 82,887.40, 124,331.10 and 51,740.20

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Solution

The fourth proportional to 82,887.40, 124,331.10 and 51,740.20 is: 77,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,887.40 : 124,331.10 = 51,740.20 : x
  2. Step 2: Convert to fraction form
    82,887.40/124,331.10 = 51,740.20/x
  3. Step 3: Cross multiply
    82,887.40x = 124,331.10 × 51,740.20
  4. Step 4: Simplify right side
    82,887.40x = 6,432,915,980.22
  5. Step 5: Solve for x
    x = 6,432,915,980.22/82,887.40
  6. Step 6: Final answer
    x = 77,610.30

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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.