Home / 90,154.35-124,515.14-61,424.19

Finding the Fourth Proportional to 90,154.35, 124,515.14 and 61,424.19

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Solution

The fourth proportional to 90,154.35, 124,515.14 and 61,424.19 is: 84,834.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,154.35 : 124,515.14 = 61,424.19 : x
  2. Step 2: Convert to fraction form
    90,154.35/124,515.14 = 61,424.19/x
  3. Step 3: Cross multiply
    90,154.35x = 124,515.14 × 61,424.19
  4. Step 4: Simplify right side
    90,154.35x = 7,648,241,310.12
  5. Step 5: Solve for x
    x = 7,648,241,310.12/90,154.35
  6. Step 6: Final answer
    x = 84,834.97

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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.