Home / 88,210.56-121,731.15-47,924.31

Finding the Fourth Proportional to 88,210.56, 121,731.15 and 47,924.31

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Solution

The fourth proportional to 88,210.56, 121,731.15 and 47,924.31 is: 66,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,210.56 : 121,731.15 = 47,924.31 : x
  2. Step 2: Convert to fraction form
    88,210.56/121,731.15 = 47,924.31/x
  3. Step 3: Cross multiply
    88,210.56x = 121,731.15 × 47,924.31
  4. Step 4: Simplify right side
    88,210.56x = 5,833,881,369.26
  5. Step 5: Solve for x
    x = 5,833,881,369.26/88,210.56
  6. Step 6: Final answer
    x = 66,135.86

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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.