Home / 51,543.20-71,130.41-31,400.93

Finding the Fourth Proportional to 51,543.20, 71,130.41 and 31,400.93

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Solution

The fourth proportional to 51,543.20, 71,130.41 and 31,400.93 is: 43,333.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,543.20 : 71,130.41 = 31,400.93 : x
  2. Step 2: Convert to fraction form
    51,543.20/71,130.41 = 31,400.93/x
  3. Step 3: Cross multiply
    51,543.20x = 71,130.41 × 31,400.93
  4. Step 4: Simplify right side
    51,543.20x = 2,233,561,025.28
  5. Step 5: Solve for x
    x = 2,233,561,025.28/51,543.20
  6. Step 6: Final answer
    x = 43,333.77

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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.