Home / 78,632.20-108,521.40-46,801.20

Finding the Fourth Proportional to 78,632.20, 108,521.40 and 46,801.20

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Solution

The fourth proportional to 78,632.20, 108,521.40 and 46,801.20 is: 64,590.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,632.20 : 108,521.40 = 46,801.20 : x
  2. Step 2: Convert to fraction form
    78,632.20/108,521.40 = 46,801.20/x
  3. Step 3: Cross multiply
    78,632.20x = 108,521.40 × 46,801.20
  4. Step 4: Simplify right side
    78,632.20x = 5,078,931,745.68
  5. Step 5: Solve for x
    x = 5,078,931,745.68/78,632.20
  6. Step 6: Final answer
    x = 64,590.99

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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.