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Finding the Fourth Proportional to 101,461.47, 140,012.28 and 55,520.25

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Solution

The fourth proportional to 101,461.47, 140,012.28 and 55,520.25 is: 76,615.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,461.47 : 140,012.28 = 55,520.25 : x
  2. Step 2: Convert to fraction form
    101,461.47/140,012.28 = 55,520.25/x
  3. Step 3: Cross multiply
    101,461.47x = 140,012.28 × 55,520.25
  4. Step 4: Simplify right side
    101,461.47x = 7,773,516,788.67
  5. Step 5: Solve for x
    x = 7,773,516,788.67/101,461.47
  6. Step 6: Final answer
    x = 76,615.46

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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.