Home / 74,151.02-102,328.72-40,159.91

Finding the Fourth Proportional to 74,151.02, 102,328.72 and 40,159.91

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Solution

The fourth proportional to 74,151.02, 102,328.72 and 40,159.91 is: 55,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,151.02 : 102,328.72 = 40,159.91 : x
  2. Step 2: Convert to fraction form
    74,151.02/102,328.72 = 40,159.91/x
  3. Step 3: Cross multiply
    74,151.02x = 102,328.72 × 40,159.91
  4. Step 4: Simplify right side
    74,151.02x = 4,109,512,341.04
  5. Step 5: Solve for x
    x = 4,109,512,341.04/74,151.02
  6. Step 6: Final answer
    x = 55,420.85

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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.