Home / 85,937.29-128,905.97-26,772.93

Finding the Fourth Proportional to 85,937.29, 128,905.97 and 26,772.93

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Solution

The fourth proportional to 85,937.29, 128,905.97 and 26,772.93 is: 40,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,937.29 : 128,905.97 = 26,772.93 : x
  2. Step 2: Convert to fraction form
    85,937.29/128,905.97 = 26,772.93/x
  3. Step 3: Cross multiply
    85,937.29x = 128,905.97 × 26,772.93
  4. Step 4: Simplify right side
    85,937.29x = 3,451,190,377.53
  5. Step 5: Solve for x
    x = 3,451,190,377.53/85,937.29
  6. Step 6: Final answer
    x = 40,159.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.