Home / 89,893.11-134,711.16-66,013.36

Finding the Fourth Proportional to 89,893.11, 134,711.16 and 66,013.36

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Solution

The fourth proportional to 89,893.11, 134,711.16 and 66,013.36 is: 98,925.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,893.11 : 134,711.16 = 66,013.36 : x
  2. Step 2: Convert to fraction form
    89,893.11/134,711.16 = 66,013.36/x
  3. Step 3: Cross multiply
    89,893.11x = 134,711.16 × 66,013.36
  4. Step 4: Simplify right side
    89,893.11x = 8,892,736,301.10
  5. Step 5: Solve for x
    x = 8,892,736,301.10/89,893.11
  6. Step 6: Final answer
    x = 98,925.68

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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.