Home / 105,480.47-145,562.51-57,082.36

Finding the Fourth Proportional to 105,480.47, 145,562.51 and 57,082.36

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Solution

The fourth proportional to 105,480.47, 145,562.51 and 57,082.36 is: 78,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,480.47 : 145,562.51 = 57,082.36 : x
  2. Step 2: Convert to fraction form
    105,480.47/145,562.51 = 57,082.36/x
  3. Step 3: Cross multiply
    105,480.47x = 145,562.51 × 57,082.36
  4. Step 4: Simplify right side
    105,480.47x = 8,309,051,598.32
  5. Step 5: Solve for x
    x = 8,309,051,598.32/105,480.47
  6. Step 6: Final answer
    x = 78,773.37

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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.