Home / 52,740.36-72,781.43-28,541.31

Finding the Fourth Proportional to 52,740.36, 72,781.43 and 28,541.31

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Solution

The fourth proportional to 52,740.36, 72,781.43 and 28,541.31 is: 39,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,740.36 : 72,781.43 = 28,541.31 : x
  2. Step 2: Convert to fraction form
    52,740.36/72,781.43 = 28,541.31/x
  3. Step 3: Cross multiply
    52,740.36x = 72,781.43 × 28,541.31
  4. Step 4: Simplify right side
    52,740.36x = 2,077,277,355.87
  5. Step 5: Solve for x
    x = 2,077,277,355.87/52,740.36
  6. Step 6: Final answer
    x = 39,386.86

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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.