Home / 89,633.28-123,613.90-63,740.93

Finding the Fourth Proportional to 89,633.28, 123,613.90 and 63,740.93

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Solution

The fourth proportional to 89,633.28, 123,613.90 and 63,740.93 is: 87,905.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,633.28 : 123,613.90 = 63,740.93 : x
  2. Step 2: Convert to fraction form
    89,633.28/123,613.90 = 63,740.93/x
  3. Step 3: Cross multiply
    89,633.28x = 123,613.90 × 63,740.93
  4. Step 4: Simplify right side
    89,633.28x = 7,879,264,169.51
  5. Step 5: Solve for x
    x = 7,879,264,169.51/89,633.28
  6. Step 6: Final answer
    x = 87,905.56

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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.