Home / 55,345.20-83,017.80-36,318.30

Finding the Fourth Proportional to 55,345.20, 83,017.80 and 36,318.30

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Solution

The fourth proportional to 55,345.20, 83,017.80 and 36,318.30 is: 54,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,345.20 : 83,017.80 = 36,318.30 : x
  2. Step 2: Convert to fraction form
    55,345.20/83,017.80 = 36,318.30/x
  3. Step 3: Cross multiply
    55,345.20x = 83,017.80 × 36,318.30
  4. Step 4: Simplify right side
    55,345.20x = 3,015,065,365.74
  5. Step 5: Solve for x
    x = 3,015,065,365.74/55,345.20
  6. Step 6: Final answer
    x = 54,477.45

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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.