Home / 56,616.48-77,995.68-39,588.88

Finding the Fourth Proportional to 56,616.48, 77,995.68 and 39,588.88

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Solution

The fourth proportional to 56,616.48, 77,995.68 and 39,588.88 is: 54,538.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,616.48 : 77,995.68 = 39,588.88 : x
  2. Step 2: Convert to fraction form
    56,616.48/77,995.68 = 39,588.88/x
  3. Step 3: Cross multiply
    56,616.48x = 77,995.68 × 39,588.88
  4. Step 4: Simplify right side
    56,616.48x = 3,087,761,616.04
  5. Step 5: Solve for x
    x = 3,087,761,616.04/56,616.48
  6. Step 6: Final answer
    x = 54,538.21

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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.