Home / 88,437.08-121,889.40-77,035.52

Finding the Fourth Proportional to 88,437.08, 121,889.40 and 77,035.52

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Solution

The fourth proportional to 88,437.08, 121,889.40 and 77,035.52 is: 106,175.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,437.08 : 121,889.40 = 77,035.52 : x
  2. Step 2: Convert to fraction form
    88,437.08/121,889.40 = 77,035.52/x
  3. Step 3: Cross multiply
    88,437.08x = 121,889.40 × 77,035.52
  4. Step 4: Simplify right side
    88,437.08x = 9,389,813,311.49
  5. Step 5: Solve for x
    x = 9,389,813,311.49/88,437.08
  6. Step 6: Final answer
    x = 106,175.07

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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.