Home / 65,015.17-89,722.62-38,158.81

Finding the Fourth Proportional to 65,015.17, 89,722.62 and 38,158.81

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Solution

The fourth proportional to 65,015.17, 89,722.62 and 38,158.81 is: 52,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,015.17 : 89,722.62 = 38,158.81 : x
  2. Step 2: Convert to fraction form
    65,015.17/89,722.62 = 38,158.81/x
  3. Step 3: Cross multiply
    65,015.17x = 89,722.62 × 38,158.81
  4. Step 4: Simplify right side
    65,015.17x = 3,423,708,184.98
  5. Step 5: Solve for x
    x = 3,423,708,184.98/65,015.17
  6. Step 6: Final answer
    x = 52,660.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.