Home / 81,127.35-121,702.54-24,972.13

Finding the Fourth Proportional to 81,127.35, 121,702.54 and 24,972.13

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Solution

The fourth proportional to 81,127.35, 121,702.54 and 24,972.13 is: 37,461.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,127.35 : 121,702.54 = 24,972.13 : x
  2. Step 2: Convert to fraction form
    81,127.35/121,702.54 = 24,972.13/x
  3. Step 3: Cross multiply
    81,127.35x = 121,702.54 × 24,972.13
  4. Step 4: Simplify right side
    81,127.35x = 3,039,171,650.21
  5. Step 5: Solve for x
    x = 3,039,171,650.21/81,127.35
  6. Step 6: Final answer
    x = 37,461.74

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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.