Home / 71,928.48-99,261.30-40,099.41

Finding the Fourth Proportional to 71,928.48, 99,261.30 and 40,099.41

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Solution

The fourth proportional to 71,928.48, 99,261.30 and 40,099.41 is: 55,337.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,928.48 : 99,261.30 = 40,099.41 : x
  2. Step 2: Convert to fraction form
    71,928.48/99,261.30 = 40,099.41/x
  3. Step 3: Cross multiply
    71,928.48x = 99,261.30 × 40,099.41
  4. Step 4: Simplify right side
    71,928.48x = 3,980,319,565.83
  5. Step 5: Solve for x
    x = 3,980,319,565.83/71,928.48
  6. Step 6: Final answer
    x = 55,337.18

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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.