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Finding the Fourth Proportional to 56,703.31, 78,251.07 and 31,552.81

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Solution

The fourth proportional to 56,703.31, 78,251.07 and 31,552.81 is: 43,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,703.31 : 78,251.07 = 31,552.81 : x
  2. Step 2: Convert to fraction form
    56,703.31/78,251.07 = 31,552.81/x
  3. Step 3: Cross multiply
    56,703.31x = 78,251.07 × 31,552.81
  4. Step 4: Simplify right side
    56,703.31x = 2,469,041,144.01
  5. Step 5: Solve for x
    x = 2,469,041,144.01/56,703.31
  6. Step 6: Final answer
    x = 43,543.16

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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.