Home / 78,309.12-108,118.62-46,488.24

Finding the Fourth Proportional to 78,309.12, 108,118.62 and 46,488.24

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Solution

The fourth proportional to 78,309.12, 108,118.62 and 46,488.24 is: 64,184.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,309.12 : 108,118.62 = 46,488.24 : x
  2. Step 2: Convert to fraction form
    78,309.12/108,118.62 = 46,488.24/x
  3. Step 3: Cross multiply
    78,309.12x = 108,118.62 × 46,488.24
  4. Step 4: Simplify right side
    78,309.12x = 5,026,244,355.03
  5. Step 5: Solve for x
    x = 5,026,244,355.03/78,309.12
  6. Step 6: Final answer
    x = 64,184.66

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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.