Home / 71,880.13-99,195.27-39,615.92

Finding the Fourth Proportional to 71,880.13, 99,195.27 and 39,615.92

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Solution

The fourth proportional to 71,880.13, 99,195.27 and 39,615.92 is: 54,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,880.13 : 99,195.27 = 39,615.92 : x
  2. Step 2: Convert to fraction form
    71,880.13/99,195.27 = 39,615.92/x
  3. Step 3: Cross multiply
    71,880.13x = 99,195.27 × 39,615.92
  4. Step 4: Simplify right side
    71,880.13x = 3,929,711,186.64
  5. Step 5: Solve for x
    x = 3,929,711,186.64/71,880.13
  6. Step 6: Final answer
    x = 54,670.34

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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.