Home / 89,785.40-134,596-39,875.44

Finding the Fourth Proportional to 89,785.40, 134,596 and 39,875.44

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Solution

The fourth proportional to 89,785.40, 134,596 and 39,875.44 is: 59,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,785.40 : 134,596 = 39,875.44 : x
  2. Step 2: Convert to fraction form
    89,785.40/134,596 = 39,875.44/x
  3. Step 3: Cross multiply
    89,785.40x = 134,596 × 39,875.44
  4. Step 4: Simplify right side
    89,785.40x = 5,367,074,722.24
  5. Step 5: Solve for x
    x = 5,367,074,722.24/89,785.40
  6. Step 6: Final answer
    x = 59,776.70

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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.