Home / 90,549.40-135,837.04-28,224.76

Finding the Fourth Proportional to 90,549.40, 135,837.04 and 28,224.76

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Solution

The fourth proportional to 90,549.40, 135,837.04 and 28,224.76 is: 42,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,549.40 : 135,837.04 = 28,224.76 : x
  2. Step 2: Convert to fraction form
    90,549.40/135,837.04 = 28,224.76/x
  3. Step 3: Cross multiply
    90,549.40x = 135,837.04 × 28,224.76
  4. Step 4: Simplify right side
    90,549.40x = 3,833,967,853.11
  5. Step 5: Solve for x
    x = 3,833,967,853.11/90,549.40
  6. Step 6: Final answer
    x = 42,341.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.