Home / 85,012.66-117,332.15-49,222.40

Finding the Fourth Proportional to 85,012.66, 117,332.15 and 49,222.40

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Solution

The fourth proportional to 85,012.66, 117,332.15 and 49,222.40 is: 67,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.66 : 117,332.15 = 49,222.40 : x
  2. Step 2: Convert to fraction form
    85,012.66/117,332.15 = 49,222.40/x
  3. Step 3: Cross multiply
    85,012.66x = 117,332.15 × 49,222.40
  4. Step 4: Simplify right side
    85,012.66x = 5,775,369,847.38
  5. Step 5: Solve for x
    x = 5,775,369,847.38/85,012.66
  6. Step 6: Final answer
    x = 67,935.41

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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.