Home / 55,111-76,053.56-29,961.40

Finding the Fourth Proportional to 55,111, 76,053.56 and 29,961.40

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Solution

The fourth proportional to 55,111, 76,053.56 and 29,961.40 is: 41,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111 : 76,053.56 = 29,961.40 : x
  2. Step 2: Convert to fraction form
    55,111/76,053.56 = 29,961.40/x
  3. Step 3: Cross multiply
    55,111x = 76,053.56 × 29,961.40
  4. Step 4: Simplify right side
    55,111x = 2,278,671,132.58
  5. Step 5: Solve for x
    x = 2,278,671,132.58/55,111
  6. Step 6: Final answer
    x = 41,346.94

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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.