Home / 88,018.32-121,444.14-49,778.64

Finding the Fourth Proportional to 88,018.32, 121,444.14 and 49,778.64

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Solution

The fourth proportional to 88,018.32, 121,444.14 and 49,778.64 is: 68,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,018.32 : 121,444.14 = 49,778.64 : x
  2. Step 2: Convert to fraction form
    88,018.32/121,444.14 = 49,778.64/x
  3. Step 3: Cross multiply
    88,018.32x = 121,444.14 × 49,778.64
  4. Step 4: Simplify right side
    88,018.32x = 6,045,324,125.17
  5. Step 5: Solve for x
    x = 6,045,324,125.17/88,018.32
  6. Step 6: Final answer
    x = 68,682.57

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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.