Home / 66,478.16-91,773.72-51,336.83

Finding the Fourth Proportional to 66,478.16, 91,773.72 and 51,336.83

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Solution

The fourth proportional to 66,478.16, 91,773.72 and 51,336.83 is: 70,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,478.16 : 91,773.72 = 51,336.83 : x
  2. Step 2: Convert to fraction form
    66,478.16/91,773.72 = 51,336.83/x
  3. Step 3: Cross multiply
    66,478.16x = 91,773.72 × 51,336.83
  4. Step 4: Simplify right side
    66,478.16x = 4,711,371,146.55
  5. Step 5: Solve for x
    x = 4,711,371,146.55/66,478.16
  6. Step 6: Final answer
    x = 70,870.97

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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.