Home / 89,901.24-124,071.66-49,623.72

Finding the Fourth Proportional to 89,901.24, 124,071.66 and 49,623.72

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Solution

The fourth proportional to 89,901.24, 124,071.66 and 49,623.72 is: 68,485.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,901.24 : 124,071.66 = 49,623.72 : x
  2. Step 2: Convert to fraction form
    89,901.24/124,071.66 = 49,623.72/x
  3. Step 3: Cross multiply
    89,901.24x = 124,071.66 × 49,623.72
  4. Step 4: Simplify right side
    89,901.24x = 6,156,897,315.78
  5. Step 5: Solve for x
    x = 6,156,897,315.78/89,901.24
  6. Step 6: Final answer
    x = 68,485.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.