Home / 88,685.66-122,386.19-56,854.55

Finding the Fourth Proportional to 88,685.66, 122,386.19 and 56,854.55

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Solution

The fourth proportional to 88,685.66, 122,386.19 and 56,854.55 is: 78,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,685.66 : 122,386.19 = 56,854.55 : x
  2. Step 2: Convert to fraction form
    88,685.66/122,386.19 = 56,854.55/x
  3. Step 3: Cross multiply
    88,685.66x = 122,386.19 × 56,854.55
  4. Step 4: Simplify right side
    88,685.66x = 6,958,211,780.36
  5. Step 5: Solve for x
    x = 6,958,211,780.36/88,685.66
  6. Step 6: Final answer
    x = 78,459.26

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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.