Home / 89,729.84-134,596.92-42,931.28

Finding the Fourth Proportional to 89,729.84, 134,596.92 and 42,931.28

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Solution

The fourth proportional to 89,729.84, 134,596.92 and 42,931.28 is: 64,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,729.84 : 134,596.92 = 42,931.28 : x
  2. Step 2: Convert to fraction form
    89,729.84/134,596.92 = 42,931.28/x
  3. Step 3: Cross multiply
    89,729.84x = 134,596.92 × 42,931.28
  4. Step 4: Simplify right side
    89,729.84x = 5,778,418,059.66
  5. Step 5: Solve for x
    x = 5,778,418,059.66/89,729.84
  6. Step 6: Final answer
    x = 64,397.95

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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.