Home / 87,066.80-120,117.63-56,842.46

Finding the Fourth Proportional to 87,066.80, 120,117.63 and 56,842.46

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Solution

The fourth proportional to 87,066.80, 120,117.63 and 56,842.46 is: 78,420.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,066.80 : 120,117.63 = 56,842.46 : x
  2. Step 2: Convert to fraction form
    87,066.80/120,117.63 = 56,842.46/x
  3. Step 3: Cross multiply
    87,066.80x = 120,117.63 × 56,842.46
  4. Step 4: Simplify right side
    87,066.80x = 6,827,781,578.57
  5. Step 5: Solve for x
    x = 6,827,781,578.57/87,066.80
  6. Step 6: Final answer
    x = 78,420.04

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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.