Home / 78,782.02-118,188.38-25,487.19

Finding the Fourth Proportional to 78,782.02, 118,188.38 and 25,487.19

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Solution

The fourth proportional to 78,782.02, 118,188.38 and 25,487.19 is: 38,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,782.02 : 118,188.38 = 25,487.19 : x
  2. Step 2: Convert to fraction form
    78,782.02/118,188.38 = 25,487.19/x
  3. Step 3: Cross multiply
    78,782.02x = 118,188.38 × 25,487.19
  4. Step 4: Simplify right side
    78,782.02x = 3,012,289,760.57
  5. Step 5: Solve for x
    x = 3,012,289,760.57/78,782.02
  6. Step 6: Final answer
    x = 38,235.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.