Home / 75,987.65-113,888.05-42,637.66

Finding the Fourth Proportional to 75,987.65, 113,888.05 and 42,637.66

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Solution

The fourth proportional to 75,987.65, 113,888.05 and 42,637.66 is: 63,904.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,987.65 : 113,888.05 = 42,637.66 : x
  2. Step 2: Convert to fraction form
    75,987.65/113,888.05 = 42,637.66/x
  3. Step 3: Cross multiply
    75,987.65x = 113,888.05 × 42,637.66
  4. Step 4: Simplify right side
    75,987.65x = 4,855,919,562.65
  5. Step 5: Solve for x
    x = 4,855,919,562.65/75,987.65
  6. Step 6: Final answer
    x = 63,904.06

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1.5x scale

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.