Home / 84,005.20-115,925.88-46,280.80

Finding the Fourth Proportional to 84,005.20, 115,925.88 and 46,280.80

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Solution

The fourth proportional to 84,005.20, 115,925.88 and 46,280.80 is: 63,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,005.20 : 115,925.88 = 46,280.80 : x
  2. Step 2: Convert to fraction form
    84,005.20/115,925.88 = 46,280.80/x
  3. Step 3: Cross multiply
    84,005.20x = 115,925.88 × 46,280.80
  4. Step 4: Simplify right side
    84,005.20x = 5,365,142,467.10
  5. Step 5: Solve for x
    x = 5,365,142,467.10/84,005.20
  6. Step 6: Final answer
    x = 63,866.79

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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.