Home / 74,723.16-103,117.29-40,731.65

Finding the Fourth Proportional to 74,723.16, 103,117.29 and 40,731.65

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Solution

The fourth proportional to 74,723.16, 103,117.29 and 40,731.65 is: 56,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,723.16 : 103,117.29 = 40,731.65 : x
  2. Step 2: Convert to fraction form
    74,723.16/103,117.29 = 40,731.65/x
  3. Step 3: Cross multiply
    74,723.16x = 103,117.29 × 40,731.65
  4. Step 4: Simplify right side
    74,723.16x = 4,200,136,696.90
  5. Step 5: Solve for x
    x = 4,200,136,696.90/74,723.16
  6. Step 6: Final answer
    x = 56,209.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.