Home / 85,339.64-128,009.42-23,010.14

Finding the Fourth Proportional to 85,339.64, 128,009.42 and 23,010.14

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Solution

The fourth proportional to 85,339.64, 128,009.42 and 23,010.14 is: 34,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,339.64 : 128,009.42 = 23,010.14 : x
  2. Step 2: Convert to fraction form
    85,339.64/128,009.42 = 23,010.14/x
  3. Step 3: Cross multiply
    85,339.64x = 128,009.42 × 23,010.14
  4. Step 4: Simplify right side
    85,339.64x = 2,945,514,675.52
  5. Step 5: Solve for x
    x = 2,945,514,675.52/85,339.64
  6. Step 6: Final answer
    x = 34,515.20

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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.