Home / 88,206.27-121,725.51-47,920.35

Finding the Fourth Proportional to 88,206.27, 121,725.51 and 47,920.35

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Solution

The fourth proportional to 88,206.27, 121,725.51 and 47,920.35 is: 66,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,206.27 : 121,725.51 = 47,920.35 : x
  2. Step 2: Convert to fraction form
    88,206.27/121,725.51 = 47,920.35/x
  3. Step 3: Cross multiply
    88,206.27x = 121,725.51 × 47,920.35
  4. Step 4: Simplify right side
    88,206.27x = 5,833,129,043.13
  5. Step 5: Solve for x
    x = 5,833,129,043.13/88,206.27
  6. Step 6: Final answer
    x = 66,130.55

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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.