Home / 53,169.90-73,374.76-28,971.15

Finding the Fourth Proportional to 53,169.90, 73,374.76 and 28,971.15

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Solution

The fourth proportional to 53,169.90, 73,374.76 and 28,971.15 is: 39,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,169.90 : 73,374.76 = 28,971.15 : x
  2. Step 2: Convert to fraction form
    53,169.90/73,374.76 = 28,971.15/x
  3. Step 3: Cross multiply
    53,169.90x = 73,374.76 × 28,971.15
  4. Step 4: Simplify right side
    53,169.90x = 2,125,751,178.17
  5. Step 5: Solve for x
    x = 2,125,751,178.17/53,169.90
  6. Step 6: Final answer
    x = 39,980.35

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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.