Home / 78,612.08-108,467.79-46,774.76

Finding the Fourth Proportional to 78,612.08, 108,467.79 and 46,774.76

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Solution

The fourth proportional to 78,612.08, 108,467.79 and 46,774.76 is: 64,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,612.08 : 108,467.79 = 46,774.76 : x
  2. Step 2: Convert to fraction form
    78,612.08/108,467.79 = 46,774.76/x
  3. Step 3: Cross multiply
    78,612.08x = 108,467.79 × 46,774.76
  4. Step 4: Simplify right side
    78,612.08x = 5,073,554,844.98
  5. Step 5: Solve for x
    x = 5,073,554,844.98/78,612.08
  6. Step 6: Final answer
    x = 64,539.12

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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.