Home / 42,854.54-64,323.30-20,683.48

Finding the Fourth Proportional to 42,854.54, 64,323.30 and 20,683.48

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Solution

The fourth proportional to 42,854.54, 64,323.30 and 20,683.48 is: 31,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,854.54 : 64,323.30 = 20,683.48 : x
  2. Step 2: Convert to fraction form
    42,854.54/64,323.30 = 20,683.48/x
  3. Step 3: Cross multiply
    42,854.54x = 64,323.30 × 20,683.48
  4. Step 4: Simplify right side
    42,854.54x = 1,330,429,689.08
  5. Step 5: Solve for x
    x = 1,330,429,689.08/42,854.54
  6. Step 6: Final answer
    x = 31,045.24

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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.