Home / 56,812.60-78,398.24-31,318.93

Finding the Fourth Proportional to 56,812.60, 78,398.24 and 31,318.93

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Solution

The fourth proportional to 56,812.60, 78,398.24 and 31,318.93 is: 43,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,812.60 : 78,398.24 = 31,318.93 : x
  2. Step 2: Convert to fraction form
    56,812.60/78,398.24 = 31,318.93/x
  3. Step 3: Cross multiply
    56,812.60x = 78,398.24 × 31,318.93
  4. Step 4: Simplify right side
    56,812.60x = 2,455,348,990.68
  5. Step 5: Solve for x
    x = 2,455,348,990.68/56,812.60
  6. Step 6: Final answer
    x = 43,218.39

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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.