Home / 74,642.32-102,960.12-44,407.20

Finding the Fourth Proportional to 74,642.32, 102,960.12 and 44,407.20

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Solution

The fourth proportional to 74,642.32, 102,960.12 and 44,407.20 is: 61,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,642.32 : 102,960.12 = 44,407.20 : x
  2. Step 2: Convert to fraction form
    74,642.32/102,960.12 = 44,407.20/x
  3. Step 3: Cross multiply
    74,642.32x = 102,960.12 × 44,407.20
  4. Step 4: Simplify right side
    74,642.32x = 4,572,170,640.86
  5. Step 5: Solve for x
    x = 4,572,170,640.86/74,642.32
  6. Step 6: Final answer
    x = 61,254.40

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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.