Home / 88,318.68-121,878.60-48,031.57

Finding the Fourth Proportional to 88,318.68, 121,878.60 and 48,031.57

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Solution

The fourth proportional to 88,318.68, 121,878.60 and 48,031.57 is: 66,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,318.68 : 121,878.60 = 48,031.57 : x
  2. Step 2: Convert to fraction form
    88,318.68/121,878.60 = 48,031.57/x
  3. Step 3: Cross multiply
    88,318.68x = 121,878.60 × 48,031.57
  4. Step 4: Simplify right side
    88,318.68x = 5,854,020,507.40
  5. Step 5: Solve for x
    x = 5,854,020,507.40/88,318.68
  6. Step 6: Final answer
    x = 66,282.93

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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.