Home / 66,302.15-99,179.84-42,573.20

Finding the Fourth Proportional to 66,302.15, 99,179.84 and 42,573.20

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Solution

The fourth proportional to 66,302.15, 99,179.84 and 42,573.20 is: 63,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,302.15 : 99,179.84 = 42,573.20 : x
  2. Step 2: Convert to fraction form
    66,302.15/99,179.84 = 42,573.20/x
  3. Step 3: Cross multiply
    66,302.15x = 99,179.84 × 42,573.20
  4. Step 4: Simplify right side
    66,302.15x = 4,222,402,774.82
  5. Step 5: Solve for x
    x = 4,222,402,774.82/66,302.15
  6. Step 6: Final answer
    x = 63,684.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.