Home / 66,188.20-99,139.74-31,075.24

Finding the Fourth Proportional to 66,188.20, 99,139.74 and 31,075.24

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Solution

The fourth proportional to 66,188.20, 99,139.74 and 31,075.24 is: 46,545.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,188.20 : 99,139.74 = 31,075.24 : x
  2. Step 2: Convert to fraction form
    66,188.20/99,139.74 = 31,075.24/x
  3. Step 3: Cross multiply
    66,188.20x = 99,139.74 × 31,075.24
  4. Step 4: Simplify right side
    66,188.20x = 3,080,791,214.04
  5. Step 5: Solve for x
    x = 3,080,791,214.04/66,188.20
  6. Step 6: Final answer
    x = 46,545.93

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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.