Home / 90,862.06-136,314.95-38,286.58

Finding the Fourth Proportional to 90,862.06, 136,314.95 and 38,286.58

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Solution

The fourth proportional to 90,862.06, 136,314.95 and 38,286.58 is: 57,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,862.06 : 136,314.95 = 38,286.58 : x
  2. Step 2: Convert to fraction form
    90,862.06/136,314.95 = 38,286.58/x
  3. Step 3: Cross multiply
    90,862.06x = 136,314.95 × 38,286.58
  4. Step 4: Simplify right side
    90,862.06x = 5,219,033,238.37
  5. Step 5: Solve for x
    x = 5,219,033,238.37/90,862.06
  6. Step 6: Final answer
    x = 57,439.08

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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.