Home / 52,582.40-78,844.80-21,382.40

Finding the Fourth Proportional to 52,582.40, 78,844.80 and 21,382.40

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Solution

The fourth proportional to 52,582.40, 78,844.80 and 21,382.40 is: 32,061.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,582.40 : 78,844.80 = 21,382.40 : x
  2. Step 2: Convert to fraction form
    52,582.40/78,844.80 = 21,382.40/x
  3. Step 3: Cross multiply
    52,582.40x = 78,844.80 × 21,382.40
  4. Step 4: Simplify right side
    52,582.40x = 1,685,891,051.52
  5. Step 5: Solve for x
    x = 1,685,891,051.52/52,582.40
  6. Step 6: Final answer
    x = 32,061.89

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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.