Home / 72,193.30-99,627.18-40,362.70

Finding the Fourth Proportional to 72,193.30, 99,627.18 and 40,362.70

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Solution

The fourth proportional to 72,193.30, 99,627.18 and 40,362.70 is: 55,700.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,193.30 : 99,627.18 = 40,362.70 : x
  2. Step 2: Convert to fraction form
    72,193.30/99,627.18 = 40,362.70/x
  3. Step 3: Cross multiply
    72,193.30x = 99,627.18 × 40,362.70
  4. Step 4: Simplify right side
    72,193.30x = 4,021,221,978.19
  5. Step 5: Solve for x
    x = 4,021,221,978.19/72,193.30
  6. Step 6: Final answer
    x = 55,700.76

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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.