Home / 88,447.10-121,849.41-61,543.34

Finding the Fourth Proportional to 88,447.10, 121,849.41 and 61,543.34

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Solution

The fourth proportional to 88,447.10, 121,849.41 and 61,543.34 is: 84,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,447.10 : 121,849.41 = 61,543.34 : x
  2. Step 2: Convert to fraction form
    88,447.10/121,849.41 = 61,543.34/x
  3. Step 3: Cross multiply
    88,447.10x = 121,849.41 × 61,543.34
  4. Step 4: Simplify right side
    88,447.10x = 7,499,019,668.43
  5. Step 5: Solve for x
    x = 7,499,019,668.43/88,447.10
  6. Step 6: Final answer
    x = 84,785.37

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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.