Home / 74,577.89-102,955.57-57,543.86

Finding the Fourth Proportional to 74,577.89, 102,955.57 and 57,543.86

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Solution

The fourth proportional to 74,577.89, 102,955.57 and 57,543.86 is: 79,439.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,577.89 : 102,955.57 = 57,543.86 : x
  2. Step 2: Convert to fraction form
    74,577.89/102,955.57 = 57,543.86/x
  3. Step 3: Cross multiply
    74,577.89x = 102,955.57 × 57,543.86
  4. Step 4: Simplify right side
    74,577.89x = 5,924,460,247.66
  5. Step 5: Solve for x
    x = 5,924,460,247.66/74,577.89
  6. Step 6: Final answer
    x = 79,439.91

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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.