Home / 87,054.75-120,135.56-51,266.93

Finding the Fourth Proportional to 87,054.75, 120,135.56 and 51,266.93

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Solution

The fourth proportional to 87,054.75, 120,135.56 and 51,266.93 is: 70,748.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,054.75 : 120,135.56 = 51,266.93 : x
  2. Step 2: Convert to fraction form
    87,054.75/120,135.56 = 51,266.93/x
  3. Step 3: Cross multiply
    87,054.75x = 120,135.56 × 51,266.93
  4. Step 4: Simplify right side
    87,054.75x = 6,158,980,488.02
  5. Step 5: Solve for x
    x = 6,158,980,488.02/87,054.75
  6. Step 6: Final answer
    x = 70,748.36

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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.