Home / 44,117.90-66,139.64-19,139.16

Finding the Fourth Proportional to 44,117.90, 66,139.64 and 19,139.16

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Solution

The fourth proportional to 44,117.90, 66,139.64 and 19,139.16 is: 28,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,117.90 : 66,139.64 = 19,139.16 : x
  2. Step 2: Convert to fraction form
    44,117.90/66,139.64 = 19,139.16/x
  3. Step 3: Cross multiply
    44,117.90x = 66,139.64 × 19,139.16
  4. Step 4: Simplify right side
    44,117.90x = 1,265,857,152.30
  5. Step 5: Solve for x
    x = 1,265,857,152.30/44,117.90
  6. Step 6: Final answer
    x = 28,692.60

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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.