Home / 98,134.72-135,443.64-57,846.16

Finding the Fourth Proportional to 98,134.72, 135,443.64 and 57,846.16

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Solution

The fourth proportional to 98,134.72, 135,443.64 and 57,846.16 is: 79,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,134.72 : 135,443.64 = 57,846.16 : x
  2. Step 2: Convert to fraction form
    98,134.72/135,443.64 = 57,846.16/x
  3. Step 3: Cross multiply
    98,134.72x = 135,443.64 × 57,846.16
  4. Step 4: Simplify right side
    98,134.72x = 7,834,894,470.42
  5. Step 5: Solve for x
    x = 7,834,894,470.42/98,134.72
  6. Step 6: Final answer
    x = 79,838.15

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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.