Home / 72,373.50-99,875.43-40,542.39

Finding the Fourth Proportional to 72,373.50, 99,875.43 and 40,542.39

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Solution

The fourth proportional to 72,373.50, 99,875.43 and 40,542.39 is: 55,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,373.50 : 99,875.43 = 40,542.39 : x
  2. Step 2: Convert to fraction form
    72,373.50/99,875.43 = 40,542.39/x
  3. Step 3: Cross multiply
    72,373.50x = 99,875.43 × 40,542.39
  4. Step 4: Simplify right side
    72,373.50x = 4,049,188,634.48
  5. Step 5: Solve for x
    x = 4,049,188,634.48/72,373.50
  6. Step 6: Final answer
    x = 55,948.50

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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.