Home / 53,169.60-79,768.80-47,366.40

Finding the Fourth Proportional to 53,169.60, 79,768.80 and 47,366.40

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Solution

The fourth proportional to 53,169.60, 79,768.80 and 47,366.40 is: 71,062.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,169.60 : 79,768.80 = 47,366.40 : x
  2. Step 2: Convert to fraction form
    53,169.60/79,768.80 = 47,366.40/x
  3. Step 3: Cross multiply
    53,169.60x = 79,768.80 × 47,366.40
  4. Step 4: Simplify right side
    53,169.60x = 3,778,360,888.32
  5. Step 5: Solve for x
    x = 3,778,360,888.32/53,169.60
  6. Step 6: Final answer
    x = 71,062.43

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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.