Home / 74,443.13-102,730.23-40,452.15

Finding the Fourth Proportional to 74,443.13, 102,730.23 and 40,452.15

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Solution

The fourth proportional to 74,443.13, 102,730.23 and 40,452.15 is: 55,823.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,443.13 : 102,730.23 = 40,452.15 : x
  2. Step 2: Convert to fraction form
    74,443.13/102,730.23 = 40,452.15/x
  3. Step 3: Cross multiply
    74,443.13x = 102,730.23 × 40,452.15
  4. Step 4: Simplify right side
    74,443.13x = 4,155,658,673.49
  5. Step 5: Solve for x
    x = 4,155,658,673.49/74,443.13
  6. Step 6: Final answer
    x = 55,823.27

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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.