Home / 86,122.77-118,821.99-52,120.39

Finding the Fourth Proportional to 86,122.77, 118,821.99 and 52,120.39

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Solution

The fourth proportional to 86,122.77, 118,821.99 and 52,120.39 is: 71,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,122.77 : 118,821.99 = 52,120.39 : x
  2. Step 2: Convert to fraction form
    86,122.77/118,821.99 = 52,120.39/x
  3. Step 3: Cross multiply
    86,122.77x = 118,821.99 × 52,120.39
  4. Step 4: Simplify right side
    86,122.77x = 6,193,047,953.20
  5. Step 5: Solve for x
    x = 6,193,047,953.20/86,122.77
  6. Step 6: Final answer
    x = 71,909.53

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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.