Home / 80,070.04-120,645.47-66,335.68

Finding the Fourth Proportional to 80,070.04, 120,645.47 and 66,335.68

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Solution

The fourth proportional to 80,070.04, 120,645.47 and 66,335.68 is: 99,951.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,070.04 : 120,645.47 = 66,335.68 : x
  2. Step 2: Convert to fraction form
    80,070.04/120,645.47 = 66,335.68/x
  3. Step 3: Cross multiply
    80,070.04x = 120,645.47 × 66,335.68
  4. Step 4: Simplify right side
    80,070.04x = 8,003,099,291.37
  5. Step 5: Solve for x
    x = 8,003,099,291.37/80,070.04
  6. Step 6: Final answer
    x = 99,951.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.