Home / 88,189.45-121,700.29-47,904.50

Finding the Fourth Proportional to 88,189.45, 121,700.29 and 47,904.50

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Solution

The fourth proportional to 88,189.45, 121,700.29 and 47,904.50 is: 66,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,189.45 : 121,700.29 = 47,904.50 : x
  2. Step 2: Convert to fraction form
    88,189.45/121,700.29 = 47,904.50/x
  3. Step 3: Cross multiply
    88,189.45x = 121,700.29 × 47,904.50
  4. Step 4: Simplify right side
    88,189.45x = 5,829,991,542.31
  5. Step 5: Solve for x
    x = 5,829,991,542.31/88,189.45
  6. Step 6: Final answer
    x = 66,107.58

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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.