Home / 75,718.64-104,438.76-64,309.52

Finding the Fourth Proportional to 75,718.64, 104,438.76 and 64,309.52

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Solution

The fourth proportional to 75,718.64, 104,438.76 and 64,309.52 is: 88,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,718.64 : 104,438.76 = 64,309.52 : x
  2. Step 2: Convert to fraction form
    75,718.64/104,438.76 = 64,309.52/x
  3. Step 3: Cross multiply
    75,718.64x = 104,438.76 × 64,309.52
  4. Step 4: Simplify right side
    75,718.64x = 6,716,406,525.00
  5. Step 5: Solve for x
    x = 6,716,406,525.00/75,718.64
  6. Step 6: Final answer
    x = 88,702.15

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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.