Home / 88,109.00-121,590.12-47,822.76

Finding the Fourth Proportional to 88,109.00, 121,590.12 and 47,822.76

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Solution

The fourth proportional to 88,109.00, 121,590.12 and 47,822.76 is: 65,995.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,109.00 : 121,590.12 = 47,822.76 : x
  2. Step 2: Convert to fraction form
    88,109.00/121,590.12 = 47,822.76/x
  3. Step 3: Cross multiply
    88,109.00x = 121,590.12 × 47,822.76
  4. Step 4: Simplify right side
    88,109.00x = 5,814,775,431.11
  5. Step 5: Solve for x
    x = 5,814,775,431.11/88,109.00
  6. Step 6: Final answer
    x = 65,995.25

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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.