Home / 75,275.07-103,618.86-65,061.45

Finding the Fourth Proportional to 75,275.07, 103,618.86 and 65,061.45

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Solution

The fourth proportional to 75,275.07, 103,618.86 and 65,061.45 is: 89,559.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,275.07 : 103,618.86 = 65,061.45 : x
  2. Step 2: Convert to fraction form
    75,275.07/103,618.86 = 65,061.45/x
  3. Step 3: Cross multiply
    75,275.07x = 103,618.86 × 65,061.45
  4. Step 4: Simplify right side
    75,275.07x = 6,741,593,278.95
  5. Step 5: Solve for x
    x = 6,741,593,278.95/75,275.07
  6. Step 6: Final answer
    x = 89,559.44

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1.5x scale

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.