Home / 82,877.70-124,316.55-51,384.90

Finding the Fourth Proportional to 82,877.70, 124,316.55 and 51,384.90

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Solution

The fourth proportional to 82,877.70, 124,316.55 and 51,384.90 is: 77,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,877.70 : 124,316.55 = 51,384.90 : x
  2. Step 2: Convert to fraction form
    82,877.70/124,316.55 = 51,384.90/x
  3. Step 3: Cross multiply
    82,877.70x = 124,316.55 × 51,384.90
  4. Step 4: Simplify right side
    82,877.70x = 6,387,993,490.10
  5. Step 5: Solve for x
    x = 6,387,993,490.10/82,877.70
  6. Step 6: Final answer
    x = 77,077.35

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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.