Home / 78,337.80-117,521.58-25,762.44

Finding the Fourth Proportional to 78,337.80, 117,521.58 and 25,762.44

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Solution

The fourth proportional to 78,337.80, 117,521.58 and 25,762.44 is: 38,648.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,337.80 : 117,521.58 = 25,762.44 : x
  2. Step 2: Convert to fraction form
    78,337.80/117,521.58 = 25,762.44/x
  3. Step 3: Cross multiply
    78,337.80x = 117,521.58 × 25,762.44
  4. Step 4: Simplify right side
    78,337.80x = 3,027,642,653.46
  5. Step 5: Solve for x
    x = 3,027,642,653.46/78,337.80
  6. Step 6: Final answer
    x = 38,648.55

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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.