Home / 75,931.21-113,888.61-42,546.66

Finding the Fourth Proportional to 75,931.21, 113,888.61 and 42,546.66

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Solution

The fourth proportional to 75,931.21, 113,888.61 and 42,546.66 is: 63,815.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,931.21 : 113,888.61 = 42,546.66 : x
  2. Step 2: Convert to fraction form
    75,931.21/113,888.61 = 42,546.66/x
  3. Step 3: Cross multiply
    75,931.21x = 113,888.61 × 42,546.66
  4. Step 4: Simplify right side
    75,931.21x = 4,845,579,967.54
  5. Step 5: Solve for x
    x = 4,845,579,967.54/75,931.21
  6. Step 6: Final answer
    x = 63,815.39

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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.