Home / 88,201.12-121,715.50-47,913.98

Finding the Fourth Proportional to 88,201.12, 121,715.50 and 47,913.98

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Solution

The fourth proportional to 88,201.12, 121,715.50 and 47,913.98 is: 66,120.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,201.12 : 121,715.50 = 47,913.98 : x
  2. Step 2: Convert to fraction form
    88,201.12/121,715.50 = 47,913.98/x
  3. Step 3: Cross multiply
    88,201.12x = 121,715.50 × 47,913.98
  4. Step 4: Simplify right side
    88,201.12x = 5,831,874,032.69
  5. Step 5: Solve for x
    x = 5,831,874,032.69/88,201.12
  6. Step 6: Final answer
    x = 66,120.18

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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.