Home / 71,685.18-98,931.08-43,005.92

Finding the Fourth Proportional to 71,685.18, 98,931.08 and 43,005.92

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Solution

The fourth proportional to 71,685.18, 98,931.08 and 43,005.92 is: 59,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,685.18 : 98,931.08 = 43,005.92 : x
  2. Step 2: Convert to fraction form
    71,685.18/98,931.08 = 43,005.92/x
  3. Step 3: Cross multiply
    71,685.18x = 98,931.08 × 43,005.92
  4. Step 4: Simplify right side
    71,685.18x = 4,254,621,724.85
  5. Step 5: Solve for x
    x = 4,254,621,724.85/71,685.18
  6. Step 6: Final answer
    x = 59,351.48

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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.