Home / 88,713.17-133,036.88-31,778.20

Finding the Fourth Proportional to 88,713.17, 133,036.88 and 31,778.20

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Solution

The fourth proportional to 88,713.17, 133,036.88 and 31,778.20 is: 47,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,713.17 : 133,036.88 = 31,778.20 : x
  2. Step 2: Convert to fraction form
    88,713.17/133,036.88 = 31,778.20/x
  3. Step 3: Cross multiply
    88,713.17x = 133,036.88 × 31,778.20
  4. Step 4: Simplify right side
    88,713.17x = 4,227,672,257.94
  5. Step 5: Solve for x
    x = 4,227,672,257.94/88,713.17
  6. Step 6: Final answer
    x = 47,655.52

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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.