Home / 90,163.46-124,386.47-54,333.11

Finding the Fourth Proportional to 90,163.46, 124,386.47 and 54,333.11

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Solution

The fourth proportional to 90,163.46, 124,386.47 and 54,333.11 is: 74,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,163.46 : 124,386.47 = 54,333.11 : x
  2. Step 2: Convert to fraction form
    90,163.46/124,386.47 = 54,333.11/x
  3. Step 3: Cross multiply
    90,163.46x = 124,386.47 × 54,333.11
  4. Step 4: Simplify right side
    90,163.46x = 6,758,304,000.07
  5. Step 5: Solve for x
    x = 6,758,304,000.07/90,163.46
  6. Step 6: Final answer
    x = 74,956.13

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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.