Home / 88,100.04-121,575.96-47,812.08

Finding the Fourth Proportional to 88,100.04, 121,575.96 and 47,812.08

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Solution

The fourth proportional to 88,100.04, 121,575.96 and 47,812.08 is: 65,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,100.04 : 121,575.96 = 47,812.08 : x
  2. Step 2: Convert to fraction form
    88,100.04/121,575.96 = 47,812.08/x
  3. Step 3: Cross multiply
    88,100.04x = 121,575.96 × 47,812.08
  4. Step 4: Simplify right side
    88,100.04x = 5,812,799,525.60
  5. Step 5: Solve for x
    x = 5,812,799,525.60/88,100.04
  6. Step 6: Final answer
    x = 65,979.53

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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.