Home / 90,908.11-136,380.66-38,317.51

Finding the Fourth Proportional to 90,908.11, 136,380.66 and 38,317.51

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Solution

The fourth proportional to 90,908.11, 136,380.66 and 38,317.51 is: 57,484.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,908.11 : 136,380.66 = 38,317.51 : x
  2. Step 2: Convert to fraction form
    90,908.11/136,380.66 = 38,317.51/x
  3. Step 3: Cross multiply
    90,908.11x = 136,380.66 × 38,317.51
  4. Step 4: Simplify right side
    90,908.11x = 5,225,767,303.36
  5. Step 5: Solve for x
    x = 5,225,767,303.36/90,908.11
  6. Step 6: Final answer
    x = 57,484.06

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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.