Home / 66,437.24-99,680.16-30,915.50

Finding the Fourth Proportional to 66,437.24, 99,680.16 and 30,915.50

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Solution

The fourth proportional to 66,437.24, 99,680.16 and 30,915.50 is: 46,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,437.24 : 99,680.16 = 30,915.50 : x
  2. Step 2: Convert to fraction form
    66,437.24/99,680.16 = 30,915.50/x
  3. Step 3: Cross multiply
    66,437.24x = 99,680.16 × 30,915.50
  4. Step 4: Simplify right side
    66,437.24x = 3,081,661,986.48
  5. Step 5: Solve for x
    x = 3,081,661,986.48/66,437.24
  6. Step 6: Final answer
    x = 46,384.56

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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.