Home / 89,776.16-123,885.54-49,487.84

Finding the Fourth Proportional to 89,776.16, 123,885.54 and 49,487.84

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Solution

The fourth proportional to 89,776.16, 123,885.54 and 49,487.84 is: 68,290.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,776.16 : 123,885.54 = 49,487.84 : x
  2. Step 2: Convert to fraction form
    89,776.16/123,885.54 = 49,487.84/x
  3. Step 3: Cross multiply
    89,776.16x = 123,885.54 × 49,487.84
  4. Step 4: Simplify right side
    89,776.16x = 6,130,827,162.41
  5. Step 5: Solve for x
    x = 6,130,827,162.41/89,776.16
  6. Step 6: Final answer
    x = 68,290.15

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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.