Home / 66,897.12-92,318.08-36,681.60

Finding the Fourth Proportional to 66,897.12, 92,318.08 and 36,681.60

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Solution

The fourth proportional to 66,897.12, 92,318.08 and 36,681.60 is: 50,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,897.12 : 92,318.08 = 36,681.60 : x
  2. Step 2: Convert to fraction form
    66,897.12/92,318.08 = 36,681.60/x
  3. Step 3: Cross multiply
    66,897.12x = 92,318.08 × 36,681.60
  4. Step 4: Simplify right side
    66,897.12x = 3,386,374,883.33
  5. Step 5: Solve for x
    x = 3,386,374,883.33/66,897.12
  6. Step 6: Final answer
    x = 50,620.64

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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.