Home / 45,225.12-67,835.52-21,780.48

Finding the Fourth Proportional to 45,225.12, 67,835.52 and 21,780.48

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Solution

The fourth proportional to 45,225.12, 67,835.52 and 21,780.48 is: 32,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,225.12 : 67,835.52 = 21,780.48 : x
  2. Step 2: Convert to fraction form
    45,225.12/67,835.52 = 21,780.48/x
  3. Step 3: Cross multiply
    45,225.12x = 67,835.52 × 21,780.48
  4. Step 4: Simplify right side
    45,225.12x = 1,477,490,186.65
  5. Step 5: Solve for x
    x = 1,477,490,186.65/45,225.12
  6. Step 6: Final answer
    x = 32,669.68

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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.