Home / 84,756.61-127,134.89-66,050.64

Finding the Fourth Proportional to 84,756.61, 127,134.89 and 66,050.64

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Solution

The fourth proportional to 84,756.61, 127,134.89 and 66,050.64 is: 99,075.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,756.61 : 127,134.89 = 66,050.64 : x
  2. Step 2: Convert to fraction form
    84,756.61/127,134.89 = 66,050.64/x
  3. Step 3: Cross multiply
    84,756.61x = 127,134.89 × 66,050.64
  4. Step 4: Simplify right side
    84,756.61x = 8,397,340,215.16
  5. Step 5: Solve for x
    x = 8,397,340,215.16/84,756.61
  6. Step 6: Final answer
    x = 99,075.94

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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.