Home / 81,227.52-121,915.02-56,426.94

Finding the Fourth Proportional to 81,227.52, 121,915.02 and 56,426.94

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Solution

The fourth proportional to 81,227.52, 121,915.02 and 56,426.94 is: 84,691.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,227.52 : 121,915.02 = 56,426.94 : x
  2. Step 2: Convert to fraction form
    81,227.52/121,915.02 = 56,426.94/x
  3. Step 3: Cross multiply
    81,227.52x = 121,915.02 × 56,426.94
  4. Step 4: Simplify right side
    81,227.52x = 6,879,291,518.64
  5. Step 5: Solve for x
    x = 6,879,291,518.64/81,227.52
  6. Step 6: Final answer
    x = 84,691.64

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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.