Home / 66,437.08-91,681.98-36,223.72

Finding the Fourth Proportional to 66,437.08, 91,681.98 and 36,223.72

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Solution

The fourth proportional to 66,437.08, 91,681.98 and 36,223.72 is: 49,988.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,437.08 : 91,681.98 = 36,223.72 : x
  2. Step 2: Convert to fraction form
    66,437.08/91,681.98 = 36,223.72/x
  3. Step 3: Cross multiply
    66,437.08x = 91,681.98 × 36,223.72
  4. Step 4: Simplify right side
    66,437.08x = 3,321,062,372.57
  5. Step 5: Solve for x
    x = 3,321,062,372.57/66,437.08
  6. Step 6: Final answer
    x = 49,988.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.