Home / 40,780.65-61,184.85-12,707.07

Finding the Fourth Proportional to 40,780.65, 61,184.85 and 12,707.07

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Solution

The fourth proportional to 40,780.65, 61,184.85 and 12,707.07 is: 19,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,780.65 : 61,184.85 = 12,707.07 : x
  2. Step 2: Convert to fraction form
    40,780.65/61,184.85 = 12,707.07/x
  3. Step 3: Cross multiply
    40,780.65x = 61,184.85 × 12,707.07
  4. Step 4: Simplify right side
    40,780.65x = 777,480,171.89
  5. Step 5: Solve for x
    x = 777,480,171.89/40,780.65
  6. Step 6: Final answer
    x = 19,064.93

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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.