Home / 72,557.46-100,135.37-42,344.75

Finding the Fourth Proportional to 72,557.46, 100,135.37 and 42,344.75

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Solution

The fourth proportional to 72,557.46, 100,135.37 and 42,344.75 is: 58,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,557.46 : 100,135.37 = 42,344.75 : x
  2. Step 2: Convert to fraction form
    72,557.46/100,135.37 = 42,344.75/x
  3. Step 3: Cross multiply
    72,557.46x = 100,135.37 × 42,344.75
  4. Step 4: Simplify right side
    72,557.46x = 4,240,207,565.01
  5. Step 5: Solve for x
    x = 4,240,207,565.01/72,557.46
  6. Step 6: Final answer
    x = 58,439.31

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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.