Home / 87,937.96-121,348.62-56,103.46

Finding the Fourth Proportional to 87,937.96, 121,348.62 and 56,103.46

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Solution

The fourth proportional to 87,937.96, 121,348.62 and 56,103.46 is: 77,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,937.96 : 121,348.62 = 56,103.46 : x
  2. Step 2: Convert to fraction form
    87,937.96/121,348.62 = 56,103.46/x
  3. Step 3: Cross multiply
    87,937.96x = 121,348.62 × 56,103.46
  4. Step 4: Simplify right side
    87,937.96x = 6,808,077,448.23
  5. Step 5: Solve for x
    x = 6,808,077,448.23/87,937.96
  6. Step 6: Final answer
    x = 77,419.10

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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.