Home / 74,008.81-102,132.57-40,017.16

Finding the Fourth Proportional to 74,008.81, 102,132.57 and 40,017.16

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Solution

The fourth proportional to 74,008.81, 102,132.57 and 40,017.16 is: 55,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,008.81 : 102,132.57 = 40,017.16 : x
  2. Step 2: Convert to fraction form
    74,008.81/102,132.57 = 40,017.16/x
  3. Step 3: Cross multiply
    74,008.81x = 102,132.57 × 40,017.16
  4. Step 4: Simplify right side
    74,008.81x = 4,087,055,394.90
  5. Step 5: Solve for x
    x = 4,087,055,394.90/74,008.81
  6. Step 6: Final answer
    x = 55,223.90

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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.