Home / 56,715.56-78,270.54-31,565.60

Finding the Fourth Proportional to 56,715.56, 78,270.54 and 31,565.60

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Solution

The fourth proportional to 56,715.56, 78,270.54 and 31,565.60 is: 43,562.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,715.56 : 78,270.54 = 31,565.60 : x
  2. Step 2: Convert to fraction form
    56,715.56/78,270.54 = 31,565.60/x
  3. Step 3: Cross multiply
    56,715.56x = 78,270.54 × 31,565.60
  4. Step 4: Simplify right side
    56,715.56x = 2,470,656,557.42
  5. Step 5: Solve for x
    x = 2,470,656,557.42/56,715.56
  6. Step 6: Final answer
    x = 43,562.24

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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.