Home / 89,536.32-123,555.60-53,719.20

Finding the Fourth Proportional to 89,536.32, 123,555.60 and 53,719.20

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Solution

The fourth proportional to 89,536.32, 123,555.60 and 53,719.20 is: 74,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,536.32 : 123,555.60 = 53,719.20 : x
  2. Step 2: Convert to fraction form
    89,536.32/123,555.60 = 53,719.20/x
  3. Step 3: Cross multiply
    89,536.32x = 123,555.60 × 53,719.20
  4. Step 4: Simplify right side
    89,536.32x = 6,637,307,987.52
  5. Step 5: Solve for x
    x = 6,637,307,987.52/89,536.32
  6. Step 6: Final answer
    x = 74,129.78

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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.