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Finding the Fourth Proportional to 56,357.88, 77,773.87 and 31,207.38

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Solution

The fourth proportional to 56,357.88, 77,773.87 and 31,207.38 is: 43,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,357.88 : 77,773.87 = 31,207.38 : x
  2. Step 2: Convert to fraction form
    56,357.88/77,773.87 = 31,207.38/x
  3. Step 3: Cross multiply
    56,357.88x = 77,773.87 × 31,207.38
  4. Step 4: Simplify right side
    56,357.88x = 2,427,118,715.16
  5. Step 5: Solve for x
    x = 2,427,118,715.16/56,357.88
  6. Step 6: Final answer
    x = 43,066.18

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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.