Home / 90,888.58-136,267.25-38,269.36

Finding the Fourth Proportional to 90,888.58, 136,267.25 and 38,269.36

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Solution

The fourth proportional to 90,888.58, 136,267.25 and 38,269.36 is: 57,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,888.58 : 136,267.25 = 38,269.36 : x
  2. Step 2: Convert to fraction form
    90,888.58/136,267.25 = 38,269.36/x
  3. Step 3: Cross multiply
    90,888.58x = 136,267.25 × 38,269.36
  4. Step 4: Simplify right side
    90,888.58x = 5,214,859,765.12
  5. Step 5: Solve for x
    x = 5,214,859,765.12/90,888.58
  6. Step 6: Final answer
    x = 57,376.41

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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.