Home / 72,273.60-99,737.82-40,442.45

Finding the Fourth Proportional to 72,273.60, 99,737.82 and 40,442.45

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Solution

The fourth proportional to 72,273.60, 99,737.82 and 40,442.45 is: 55,810.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,273.60 : 99,737.82 = 40,442.45 : x
  2. Step 2: Convert to fraction form
    72,273.60/99,737.82 = 40,442.45/x
  3. Step 3: Cross multiply
    72,273.60x = 99,737.82 × 40,442.45
  4. Step 4: Simplify right side
    72,273.60x = 4,033,641,299.77
  5. Step 5: Solve for x
    x = 4,033,641,299.77/72,273.60
  6. Step 6: Final answer
    x = 55,810.72

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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.