Home / 56,463.12-77,877.72-40,563.90

Finding the Fourth Proportional to 56,463.12, 77,877.72 and 40,563.90

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Solution

The fourth proportional to 56,463.12, 77,877.72 and 40,563.90 is: 55,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,463.12 : 77,877.72 = 40,563.90 : x
  2. Step 2: Convert to fraction form
    56,463.12/77,877.72 = 40,563.90/x
  3. Step 3: Cross multiply
    56,463.12x = 77,877.72 × 40,563.90
  4. Step 4: Simplify right side
    56,463.12x = 3,159,024,046.31
  5. Step 5: Solve for x
    x = 3,159,024,046.31/56,463.12
  6. Step 6: Final answer
    x = 55,948.45

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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.