Home / 89,519.60-134,117.40-42,669.20

Finding the Fourth Proportional to 89,519.60, 134,117.40 and 42,669.20

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Solution

The fourth proportional to 89,519.60, 134,117.40 and 42,669.20 is: 63,926.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,519.60 : 134,117.40 = 42,669.20 : x
  2. Step 2: Convert to fraction form
    89,519.60/134,117.40 = 42,669.20/x
  3. Step 3: Cross multiply
    89,519.60x = 134,117.40 × 42,669.20
  4. Step 4: Simplify right side
    89,519.60x = 5,722,682,164.08
  5. Step 5: Solve for x
    x = 5,722,682,164.08/89,519.60
  6. Step 6: Final answer
    x = 63,926.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.