Home / 54,528.30-81,792.45-45,780.30

Finding the Fourth Proportional to 54,528.30, 81,792.45 and 45,780.30

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Solution

The fourth proportional to 54,528.30, 81,792.45 and 45,780.30 is: 68,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,528.30 : 81,792.45 = 45,780.30 : x
  2. Step 2: Convert to fraction form
    54,528.30/81,792.45 = 45,780.30/x
  3. Step 3: Cross multiply
    54,528.30x = 81,792.45 × 45,780.30
  4. Step 4: Simplify right side
    54,528.30x = 3,744,482,898.74
  5. Step 5: Solve for x
    x = 3,744,482,898.74/54,528.30
  6. Step 6: Final answer
    x = 68,670.45

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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.