Home / 57,811.47-86,715.85-26,646.72

Finding the Fourth Proportional to 57,811.47, 86,715.85 and 26,646.72

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Solution

The fourth proportional to 57,811.47, 86,715.85 and 26,646.72 is: 39,969.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,811.47 : 86,715.85 = 26,646.72 : x
  2. Step 2: Convert to fraction form
    57,811.47/86,715.85 = 26,646.72/x
  3. Step 3: Cross multiply
    57,811.47x = 86,715.85 × 26,646.72
  4. Step 4: Simplify right side
    57,811.47x = 2,310,692,974.51
  5. Step 5: Solve for x
    x = 2,310,692,974.51/57,811.47
  6. Step 6: Final answer
    x = 39,969.46

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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.