Home / 86,280-119,069.28-52,739.52

Finding the Fourth Proportional to 86,280, 119,069.28 and 52,739.52

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Solution

The fourth proportional to 86,280, 119,069.28 and 52,739.52 is: 72,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,280 : 119,069.28 = 52,739.52 : x
  2. Step 2: Convert to fraction form
    86,280/119,069.28 = 52,739.52/x
  3. Step 3: Cross multiply
    86,280x = 119,069.28 × 52,739.52
  4. Step 4: Simplify right side
    86,280x = 6,279,656,673.95
  5. Step 5: Solve for x
    x = 6,279,656,673.95/86,280
  6. Step 6: Final answer
    x = 72,782.30

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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.