Home / 48,320.64-72,412.38-20,210.40

Finding the Fourth Proportional to 48,320.64, 72,412.38 and 20,210.40

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Solution

The fourth proportional to 48,320.64, 72,412.38 and 20,210.40 is: 30,286.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,320.64 : 72,412.38 = 20,210.40 : x
  2. Step 2: Convert to fraction form
    48,320.64/72,412.38 = 20,210.40/x
  3. Step 3: Cross multiply
    48,320.64x = 72,412.38 × 20,210.40
  4. Step 4: Simplify right side
    48,320.64x = 1,463,483,164.75
  5. Step 5: Solve for x
    x = 1,463,483,164.75/48,320.64
  6. Step 6: Final answer
    x = 30,286.92

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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.