Home / 48,400.90-72,601.35-31,812.10

Finding the Fourth Proportional to 48,400.90, 72,601.35 and 31,812.10

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Solution

The fourth proportional to 48,400.90, 72,601.35 and 31,812.10 is: 47,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,400.90 : 72,601.35 = 31,812.10 : x
  2. Step 2: Convert to fraction form
    48,400.90/72,601.35 = 31,812.10/x
  3. Step 3: Cross multiply
    48,400.90x = 72,601.35 × 31,812.10
  4. Step 4: Simplify right side
    48,400.90x = 2,309,601,406.34
  5. Step 5: Solve for x
    x = 2,309,601,406.34/48,400.90
  6. Step 6: Final answer
    x = 47,718.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.