Home / 88,118.52-121,635.90-64,367.16

Finding the Fourth Proportional to 88,118.52, 121,635.90 and 64,367.16

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Solution

The fourth proportional to 88,118.52, 121,635.90 and 64,367.16 is: 88,850.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,118.52 : 121,635.90 = 64,367.16 : x
  2. Step 2: Convert to fraction form
    88,118.52/121,635.90 = 64,367.16/x
  3. Step 3: Cross multiply
    88,118.52x = 121,635.90 × 64,367.16
  4. Step 4: Simplify right side
    88,118.52x = 7,829,357,437.04
  5. Step 5: Solve for x
    x = 7,829,357,437.04/88,118.52
  6. Step 6: Final answer
    x = 88,850.31

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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.