Home / 90,667.11-125,068.45-56,616.48

Finding the Fourth Proportional to 90,667.11, 125,068.45 and 56,616.48

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Solution

The fourth proportional to 90,667.11, 125,068.45 and 56,616.48 is: 78,098.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,667.11 : 125,068.45 = 56,616.48 : x
  2. Step 2: Convert to fraction form
    90,667.11/125,068.45 = 56,616.48/x
  3. Step 3: Cross multiply
    90,667.11x = 125,068.45 × 56,616.48
  4. Step 4: Simplify right side
    90,667.11x = 7,080,935,398.06
  5. Step 5: Solve for x
    x = 7,080,935,398.06/90,667.11
  6. Step 6: Final answer
    x = 78,098.17

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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.