Home / 56,772.47-78,346.77-31,621.97

Finding the Fourth Proportional to 56,772.47, 78,346.77 and 31,621.97

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Solution

The fourth proportional to 56,772.47, 78,346.77 and 31,621.97 is: 43,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,772.47 : 78,346.77 = 31,621.97 : x
  2. Step 2: Convert to fraction form
    56,772.47/78,346.77 = 31,621.97/x
  3. Step 3: Cross multiply
    56,772.47x = 78,346.77 × 31,621.97
  4. Step 4: Simplify right side
    56,772.47x = 2,477,479,210.54
  5. Step 5: Solve for x
    x = 2,477,479,210.54/56,772.47
  6. Step 6: Final answer
    x = 43,638.74

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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.