Home / 52,739.86-72,780.74-28,540.81

Finding the Fourth Proportional to 52,739.86, 72,780.74 and 28,540.81

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Solution

The fourth proportional to 52,739.86, 72,780.74 and 28,540.81 is: 39,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,739.86 : 72,780.74 = 28,540.81 : x
  2. Step 2: Convert to fraction form
    52,739.86/72,780.74 = 28,540.81/x
  3. Step 3: Cross multiply
    52,739.86x = 72,780.74 × 28,540.81
  4. Step 4: Simplify right side
    52,739.86x = 2,077,220,908.10
  5. Step 5: Solve for x
    x = 2,077,220,908.10/52,739.86
  6. Step 6: Final answer
    x = 39,386.17

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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.