Home / 77,730.60-107,265.14-45,909.72

Finding the Fourth Proportional to 77,730.60, 107,265.14 and 45,909.72

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Solution

The fourth proportional to 77,730.60, 107,265.14 and 45,909.72 is: 63,353.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,730.60 : 107,265.14 = 45,909.72 : x
  2. Step 2: Convert to fraction form
    77,730.60/107,265.14 = 45,909.72/x
  3. Step 3: Cross multiply
    77,730.60x = 107,265.14 × 45,909.72
  4. Step 4: Simplify right side
    77,730.60x = 4,924,512,543.16
  5. Step 5: Solve for x
    x = 4,924,512,543.16/77,730.60
  6. Step 6: Final answer
    x = 63,353.59

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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.