Home / 74,799.12-103,232.80-47,577.86

Finding the Fourth Proportional to 74,799.12, 103,232.80 and 47,577.86

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Solution

The fourth proportional to 74,799.12, 103,232.80 and 47,577.86 is: 65,663.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,799.12 : 103,232.80 = 47,577.86 : x
  2. Step 2: Convert to fraction form
    74,799.12/103,232.80 = 47,577.86/x
  3. Step 3: Cross multiply
    74,799.12x = 103,232.80 × 47,577.86
  4. Step 4: Simplify right side
    74,799.12x = 4,911,595,070.70
  5. Step 5: Solve for x
    x = 4,911,595,070.70/74,799.12
  6. Step 6: Final answer
    x = 65,663.81

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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.