Home / 89,455.95-123,460.88-57,717.18

Finding the Fourth Proportional to 89,455.95, 123,460.88 and 57,717.18

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Solution

The fourth proportional to 89,455.95, 123,460.88 and 57,717.18 is: 79,657.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,455.95 : 123,460.88 = 57,717.18 : x
  2. Step 2: Convert to fraction form
    89,455.95/123,460.88 = 57,717.18/x
  3. Step 3: Cross multiply
    89,455.95x = 123,460.88 × 57,717.18
  4. Step 4: Simplify right side
    89,455.95x = 7,125,813,545.33
  5. Step 5: Solve for x
    x = 7,125,813,545.33/89,455.95
  6. Step 6: Final answer
    x = 79,657.23

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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.