Home / 105,305.74-145,316.86-57,559.10

Finding the Fourth Proportional to 105,305.74, 145,316.86 and 57,559.10

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Solution

The fourth proportional to 105,305.74, 145,316.86 and 57,559.10 is: 79,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,305.74 : 145,316.86 = 57,559.10 : x
  2. Step 2: Convert to fraction form
    105,305.74/145,316.86 = 57,559.10/x
  3. Step 3: Cross multiply
    105,305.74x = 145,316.86 × 57,559.10
  4. Step 4: Simplify right side
    105,305.74x = 8,364,307,676.43
  5. Step 5: Solve for x
    x = 8,364,307,676.43/105,305.74
  6. Step 6: Final answer
    x = 79,428.79

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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.