Home / 78,059.40-117,052.59-28,132.92

Finding the Fourth Proportional to 78,059.40, 117,052.59 and 28,132.92

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Solution

The fourth proportional to 78,059.40, 117,052.59 and 28,132.92 is: 42,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,059.40 : 117,052.59 = 28,132.92 : x
  2. Step 2: Convert to fraction form
    78,059.40/117,052.59 = 28,132.92/x
  3. Step 3: Cross multiply
    78,059.40x = 117,052.59 × 28,132.92
  4. Step 4: Simplify right side
    78,059.40x = 3,293,031,255.76
  5. Step 5: Solve for x
    x = 3,293,031,255.76/78,059.40
  6. Step 6: Final answer
    x = 42,186.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.