Home / 40,510.88-55,930.32-31,061.28

Finding the Fourth Proportional to 40,510.88, 55,930.32 and 31,061.28

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Solution

The fourth proportional to 40,510.88, 55,930.32 and 31,061.28 is: 42,883.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,510.88 : 55,930.32 = 31,061.28 : x
  2. Step 2: Convert to fraction form
    40,510.88/55,930.32 = 31,061.28/x
  3. Step 3: Cross multiply
    40,510.88x = 55,930.32 × 31,061.28
  4. Step 4: Simplify right side
    40,510.88x = 1,737,267,330.01
  5. Step 5: Solve for x
    x = 1,737,267,330.01/40,510.88
  6. Step 6: Final answer
    x = 42,883.97

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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.