Home / 88,400.93-121,685.18-77,050.71

Finding the Fourth Proportional to 88,400.93, 121,685.18 and 77,050.71

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Solution

The fourth proportional to 88,400.93, 121,685.18 and 77,050.71 is: 106,061.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,400.93 : 121,685.18 = 77,050.71 : x
  2. Step 2: Convert to fraction form
    88,400.93/121,685.18 = 77,050.71/x
  3. Step 3: Cross multiply
    88,400.93x = 121,685.18 × 77,050.71
  4. Step 4: Simplify right side
    88,400.93x = 9,375,929,130.22
  5. Step 5: Solve for x
    x = 9,375,929,130.22/88,400.93
  6. Step 6: Final answer
    x = 106,061.44

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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.