Home / 88,115.33-121,598.72-47,828.76

Finding the Fourth Proportional to 88,115.33, 121,598.72 and 47,828.76

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Solution

The fourth proportional to 88,115.33, 121,598.72 and 47,828.76 is: 66,003.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,115.33 : 121,598.72 = 47,828.76 : x
  2. Step 2: Convert to fraction form
    88,115.33/121,598.72 = 47,828.76/x
  3. Step 3: Cross multiply
    88,115.33x = 121,598.72 × 47,828.76
  4. Step 4: Simplify right side
    88,115.33x = 5,815,915,756.04
  5. Step 5: Solve for x
    x = 5,815,915,756.04/88,115.33
  6. Step 6: Final answer
    x = 66,003.45

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1.5x scale

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.