Home / 90,968.51-136,471.05-38,377.76

Finding the Fourth Proportional to 90,968.51, 136,471.05 and 38,377.76

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Solution

The fourth proportional to 90,968.51, 136,471.05 and 38,377.76 is: 57,574.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,968.51 : 136,471.05 = 38,377.76 : x
  2. Step 2: Convert to fraction form
    90,968.51/136,471.05 = 38,377.76/x
  3. Step 3: Cross multiply
    90,968.51x = 136,471.05 × 38,377.76
  4. Step 4: Simplify right side
    90,968.51x = 5,237,453,203.85
  5. Step 5: Solve for x
    x = 5,237,453,203.85/90,968.51
  6. Step 6: Final answer
    x = 57,574.35

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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.