Home / 105,346.47-145,377.14-57,599.31

Finding the Fourth Proportional to 105,346.47, 145,377.14 and 57,599.31

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Solution

The fourth proportional to 105,346.47, 145,377.14 and 57,599.31 is: 79,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,346.47 : 145,377.14 = 57,599.31 : x
  2. Step 2: Convert to fraction form
    105,346.47/145,377.14 = 57,599.31/x
  3. Step 3: Cross multiply
    105,346.47x = 145,377.14 × 57,599.31
  4. Step 4: Simplify right side
    105,346.47x = 8,373,622,665.78
  5. Step 5: Solve for x
    x = 8,373,622,665.78/105,346.47
  6. Step 6: Final answer
    x = 79,486.50

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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.