Home / 53,177.12-73,383.47-28,978.29

Finding the Fourth Proportional to 53,177.12, 73,383.47 and 28,978.29

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Solution

The fourth proportional to 53,177.12, 73,383.47 and 28,978.29 is: 39,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,177.12 : 73,383.47 = 28,978.29 : x
  2. Step 2: Convert to fraction form
    53,177.12/73,383.47 = 28,978.29/x
  3. Step 3: Cross multiply
    53,177.12x = 73,383.47 × 28,978.29
  4. Step 4: Simplify right side
    53,177.12x = 2,126,527,547.31
  5. Step 5: Solve for x
    x = 2,126,527,547.31/53,177.12
  6. Step 6: Final answer
    x = 39,989.52

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1.5x scale

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.