Home / 90,965.95-136,463.51-38,383.18

Finding the Fourth Proportional to 90,965.95, 136,463.51 and 38,383.18

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Solution

The fourth proportional to 90,965.95, 136,463.51 and 38,383.18 is: 57,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,965.95 : 136,463.51 = 38,383.18 : x
  2. Step 2: Convert to fraction form
    90,965.95/136,463.51 = 38,383.18/x
  3. Step 3: Cross multiply
    90,965.95x = 136,463.51 × 38,383.18
  4. Step 4: Simplify right side
    90,965.95x = 5,237,903,467.76
  5. Step 5: Solve for x
    x = 5,237,903,467.76/90,965.95
  6. Step 6: Final answer
    x = 57,580.92

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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.