Home / 75,643.20-113,464.80-46,118.70

Finding the Fourth Proportional to 75,643.20, 113,464.80 and 46,118.70

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Solution

The fourth proportional to 75,643.20, 113,464.80 and 46,118.70 is: 69,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,643.20 : 113,464.80 = 46,118.70 : x
  2. Step 2: Convert to fraction form
    75,643.20/113,464.80 = 46,118.70/x
  3. Step 3: Cross multiply
    75,643.20x = 113,464.80 × 46,118.70
  4. Step 4: Simplify right side
    75,643.20x = 5,232,849,071.76
  5. Step 5: Solve for x
    x = 5,232,849,071.76/75,643.20
  6. Step 6: Final answer
    x = 69,178.05

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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.