Home / 57,234.27-78,981.81-31,740.23

Finding the Fourth Proportional to 57,234.27, 78,981.81 and 31,740.23

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Solution

The fourth proportional to 57,234.27, 78,981.81 and 31,740.23 is: 43,800.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.27 : 78,981.81 = 31,740.23 : x
  2. Step 2: Convert to fraction form
    57,234.27/78,981.81 = 31,740.23/x
  3. Step 3: Cross multiply
    57,234.27x = 78,981.81 × 31,740.23
  4. Step 4: Simplify right side
    57,234.27x = 2,506,900,420.31
  5. Step 5: Solve for x
    x = 2,506,900,420.31/57,234.27
  6. Step 6: Final answer
    x = 43,800.69

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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.