Home / 101,276.43-139,761.48-56,564.43

Finding the Fourth Proportional to 101,276.43, 139,761.48 and 56,564.43

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Solution

The fourth proportional to 101,276.43, 139,761.48 and 56,564.43 is: 78,058.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,276.43 : 139,761.48 = 56,564.43 : x
  2. Step 2: Convert to fraction form
    101,276.43/139,761.48 = 56,564.43/x
  3. Step 3: Cross multiply
    101,276.43x = 139,761.48 × 56,564.43
  4. Step 4: Simplify right side
    101,276.43x = 7,905,528,452.16
  5. Step 5: Solve for x
    x = 7,905,528,452.16/101,276.43
  6. Step 6: Final answer
    x = 78,058.92

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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.