Home / 85,745.48-118,332.96-51,753.38

Finding the Fourth Proportional to 85,745.48, 118,332.96 and 51,753.38

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Solution

The fourth proportional to 85,745.48, 118,332.96 and 51,753.38 is: 71,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,745.48 : 118,332.96 = 51,753.38 : x
  2. Step 2: Convert to fraction form
    85,745.48/118,332.96 = 51,753.38/x
  3. Step 3: Cross multiply
    85,745.48x = 118,332.96 × 51,753.38
  4. Step 4: Simplify right side
    85,745.48x = 6,124,130,645.40
  5. Step 5: Solve for x
    x = 6,124,130,645.40/85,745.48
  6. Step 6: Final answer
    x = 71,422.20

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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.