Home / 85,424.54-128,149.02-26,265.18

Finding the Fourth Proportional to 85,424.54, 128,149.02 and 26,265.18

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Solution

The fourth proportional to 85,424.54, 128,149.02 and 26,265.18 is: 39,401.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,424.54 : 128,149.02 = 26,265.18 : x
  2. Step 2: Convert to fraction form
    85,424.54/128,149.02 = 26,265.18/x
  3. Step 3: Cross multiply
    85,424.54x = 128,149.02 × 26,265.18
  4. Step 4: Simplify right side
    85,424.54x = 3,365,857,077.12
  5. Step 5: Solve for x
    x = 3,365,857,077.12/85,424.54
  6. Step 6: Final answer
    x = 39,401.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.