Home / 74,392.80-111,595.76-21,085.50

Finding the Fourth Proportional to 74,392.80, 111,595.76 and 21,085.50

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Solution

The fourth proportional to 74,392.80, 111,595.76 and 21,085.50 is: 31,630.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,392.80 : 111,595.76 = 21,085.50 : x
  2. Step 2: Convert to fraction form
    74,392.80/111,595.76 = 21,085.50/x
  3. Step 3: Cross multiply
    74,392.80x = 111,595.76 × 21,085.50
  4. Step 4: Simplify right side
    74,392.80x = 2,353,052,397.48
  5. Step 5: Solve for x
    x = 2,353,052,397.48/74,392.80
  6. Step 6: Final answer
    x = 31,630.11

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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.