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Finding the Fourth Proportional to 101,009.58, 139,394.17 and 55,689.22

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Solution

The fourth proportional to 101,009.58, 139,394.17 and 55,689.22 is: 76,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,009.58 : 139,394.17 = 55,689.22 : x
  2. Step 2: Convert to fraction form
    101,009.58/139,394.17 = 55,689.22/x
  3. Step 3: Cross multiply
    101,009.58x = 139,394.17 × 55,689.22
  4. Step 4: Simplify right side
    101,009.58x = 7,762,752,599.85
  5. Step 5: Solve for x
    x = 7,762,752,599.85/101,009.58
  6. Step 6: Final answer
    x = 76,851.65

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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.