Home / 90,555.48-124,953.90-54,248.52

Finding the Fourth Proportional to 90,555.48, 124,953.90 and 54,248.52

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Solution

The fourth proportional to 90,555.48, 124,953.90 and 54,248.52 is: 74,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,555.48 : 124,953.90 = 54,248.52 : x
  2. Step 2: Convert to fraction form
    90,555.48/124,953.90 = 54,248.52/x
  3. Step 3: Cross multiply
    90,555.48x = 124,953.90 × 54,248.52
  4. Step 4: Simplify right side
    90,555.48x = 6,778,564,143.23
  5. Step 5: Solve for x
    x = 6,778,564,143.23/90,555.48
  6. Step 6: Final answer
    x = 74,855.37

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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.