Home / 78,763.24-118,145.31-19,598.92

Finding the Fourth Proportional to 78,763.24, 118,145.31 and 19,598.92

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Solution

The fourth proportional to 78,763.24, 118,145.31 and 19,598.92 is: 29,398.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,763.24 : 118,145.31 = 19,598.92 : x
  2. Step 2: Convert to fraction form
    78,763.24/118,145.31 = 19,598.92/x
  3. Step 3: Cross multiply
    78,763.24x = 118,145.31 × 19,598.92
  4. Step 4: Simplify right side
    78,763.24x = 2,315,520,479.07
  5. Step 5: Solve for x
    x = 2,315,520,479.07/78,763.24
  6. Step 6: Final answer
    x = 29,398.49

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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.