Home / 75,095.67-103,521.60-57,159.45

Finding the Fourth Proportional to 75,095.67, 103,521.60 and 57,159.45

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Solution

The fourth proportional to 75,095.67, 103,521.60 and 57,159.45 is: 78,795.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,095.67 : 103,521.60 = 57,159.45 : x
  2. Step 2: Convert to fraction form
    75,095.67/103,521.60 = 57,159.45/x
  3. Step 3: Cross multiply
    75,095.67x = 103,521.60 × 57,159.45
  4. Step 4: Simplify right side
    75,095.67x = 5,917,237,719.12
  5. Step 5: Solve for x
    x = 5,917,237,719.12/75,095.67
  6. Step 6: Final answer
    x = 78,795.99

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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.