Home / 66,139.38-91,204.11-46,018.98

Finding the Fourth Proportional to 66,139.38, 91,204.11 and 46,018.98

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Solution

The fourth proportional to 66,139.38, 91,204.11 and 46,018.98 is: 63,458.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,139.38 : 91,204.11 = 46,018.98 : x
  2. Step 2: Convert to fraction form
    66,139.38/91,204.11 = 46,018.98/x
  3. Step 3: Cross multiply
    66,139.38x = 91,204.11 × 46,018.98
  4. Step 4: Simplify right side
    66,139.38x = 4,197,120,114.01
  5. Step 5: Solve for x
    x = 4,197,120,114.01/66,139.38
  6. Step 6: Final answer
    x = 63,458.72

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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.