Home / 64,115.10-88,421.31-53,395.38

Finding the Fourth Proportional to 64,115.10, 88,421.31 and 53,395.38

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Solution

The fourth proportional to 64,115.10, 88,421.31 and 53,395.38 is: 73,637.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,115.10 : 88,421.31 = 53,395.38 : x
  2. Step 2: Convert to fraction form
    64,115.10/88,421.31 = 53,395.38/x
  3. Step 3: Cross multiply
    64,115.10x = 88,421.31 × 53,395.38
  4. Step 4: Simplify right side
    64,115.10x = 4,721,289,447.55
  5. Step 5: Solve for x
    x = 4,721,289,447.55/64,115.10
  6. Step 6: Final answer
    x = 73,637.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.