Home / 83,345.04-115,036.20-47,556

Finding the Fourth Proportional to 83,345.04, 115,036.20 and 47,556

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Solution

The fourth proportional to 83,345.04, 115,036.20 and 47,556 is: 65,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,345.04 : 115,036.20 = 47,556 : x
  2. Step 2: Convert to fraction form
    83,345.04/115,036.20 = 47,556/x
  3. Step 3: Cross multiply
    83,345.04x = 115,036.20 × 47,556
  4. Step 4: Simplify right side
    83,345.04x = 5,470,661,527.20
  5. Step 5: Solve for x
    x = 5,470,661,527.20/83,345.04
  6. Step 6: Final answer
    x = 65,638.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.