Home / 43,125.42-64,683.88-13,542.47

Finding the Fourth Proportional to 43,125.42, 64,683.88 and 13,542.47

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Solution

The fourth proportional to 43,125.42, 64,683.88 and 13,542.47 is: 20,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,125.42 : 64,683.88 = 13,542.47 : x
  2. Step 2: Convert to fraction form
    43,125.42/64,683.88 = 13,542.47/x
  3. Step 3: Cross multiply
    43,125.42x = 64,683.88 × 13,542.47
  4. Step 4: Simplify right side
    43,125.42x = 875,979,147.11
  5. Step 5: Solve for x
    x = 875,979,147.11/43,125.42
  6. Step 6: Final answer
    x = 20,312.36

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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.