Home / 86,975.77-120,024.52-51,168.08

Finding the Fourth Proportional to 86,975.77, 120,024.52 and 51,168.08

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Solution

The fourth proportional to 86,975.77, 120,024.52 and 51,168.08 is: 70,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,975.77 : 120,024.52 = 51,168.08 : x
  2. Step 2: Convert to fraction form
    86,975.77/120,024.52 = 51,168.08/x
  3. Step 3: Cross multiply
    86,975.77x = 120,024.52 × 51,168.08
  4. Step 4: Simplify right side
    86,975.77x = 6,141,424,241.32
  5. Step 5: Solve for x
    x = 6,141,424,241.32/86,975.77
  6. Step 6: Final answer
    x = 70,610.75

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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.