Home / 92,839.10-128,117.07-50,397.57

Finding the Fourth Proportional to 92,839.10, 128,117.07 and 50,397.57

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Solution

The fourth proportional to 92,839.10, 128,117.07 and 50,397.57 is: 69,548.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,839.10 : 128,117.07 = 50,397.57 : x
  2. Step 2: Convert to fraction form
    92,839.10/128,117.07 = 50,397.57/x
  3. Step 3: Cross multiply
    92,839.10x = 128,117.07 × 50,397.57
  4. Step 4: Simplify right side
    92,839.10x = 6,456,789,003.52
  5. Step 5: Solve for x
    x = 6,456,789,003.52/92,839.10
  6. Step 6: Final answer
    x = 69,548.17

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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.