Home / 74,633.20-112,036.20-45,084.40

Finding the Fourth Proportional to 74,633.20, 112,036.20 and 45,084.40

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Solution

The fourth proportional to 74,633.20, 112,036.20 and 45,084.40 is: 67,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,633.20 : 112,036.20 = 45,084.40 : x
  2. Step 2: Convert to fraction form
    74,633.20/112,036.20 = 45,084.40/x
  3. Step 3: Cross multiply
    74,633.20x = 112,036.20 × 45,084.40
  4. Step 4: Simplify right side
    74,633.20x = 5,051,084,855.28
  5. Step 5: Solve for x
    x = 5,051,084,855.28/74,633.20
  6. Step 6: Final answer
    x = 67,678.79

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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.