Home / 90,330.78-124,673.93-52,115.01

Finding the Fourth Proportional to 90,330.78, 124,673.93 and 52,115.01

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Solution

The fourth proportional to 90,330.78, 124,673.93 and 52,115.01 is: 71,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,330.78 : 124,673.93 = 52,115.01 : x
  2. Step 2: Convert to fraction form
    90,330.78/124,673.93 = 52,115.01/x
  3. Step 3: Cross multiply
    90,330.78x = 124,673.93 × 52,115.01
  4. Step 4: Simplify right side
    90,330.78x = 6,497,382,848.11
  5. Step 5: Solve for x
    x = 6,497,382,848.11/90,330.78
  6. Step 6: Final answer
    x = 71,928.78

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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.