Home / 57,234.93-78,981.45-31,739.29

Finding the Fourth Proportional to 57,234.93, 78,981.45 and 31,739.29

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Solution

The fourth proportional to 57,234.93, 78,981.45 and 31,739.29 is: 43,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.93 : 78,981.45 = 31,739.29 : x
  2. Step 2: Convert to fraction form
    57,234.93/78,981.45 = 31,739.29/x
  3. Step 3: Cross multiply
    57,234.93x = 78,981.45 × 31,739.29
  4. Step 4: Simplify right side
    57,234.93x = 2,506,815,541.77
  5. Step 5: Solve for x
    x = 2,506,815,541.77/57,234.93
  6. Step 6: Final answer
    x = 43,798.70

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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.