Home / 75,643.65-113,465.48-25,780.05

Finding the Fourth Proportional to 75,643.65, 113,465.48 and 25,780.05

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Solution

The fourth proportional to 75,643.65, 113,465.48 and 25,780.05 is: 38,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,643.65 : 113,465.48 = 25,780.05 : x
  2. Step 2: Convert to fraction form
    75,643.65/113,465.48 = 25,780.05/x
  3. Step 3: Cross multiply
    75,643.65x = 113,465.48 × 25,780.05
  4. Step 4: Simplify right side
    75,643.65x = 2,925,145,618.77
  5. Step 5: Solve for x
    x = 2,925,145,618.77/75,643.65
  6. Step 6: Final answer
    x = 38,670.08

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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.