Home / 89,815.95-123,946.88-49,531.14

Finding the Fourth Proportional to 89,815.95, 123,946.88 and 49,531.14

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Solution

The fourth proportional to 89,815.95, 123,946.88 and 49,531.14 is: 68,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.95 : 123,946.88 = 49,531.14 : x
  2. Step 2: Convert to fraction form
    89,815.95/123,946.88 = 49,531.14/x
  3. Step 3: Cross multiply
    89,815.95x = 123,946.88 × 49,531.14
  4. Step 4: Simplify right side
    89,815.95x = 6,139,230,018.19
  5. Step 5: Solve for x
    x = 6,139,230,018.19/89,815.95
  6. Step 6: Final answer
    x = 68,353.45

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1.5x scale

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.