Home / 81,041.34-121,598.37-51,451.26

Finding the Fourth Proportional to 81,041.34, 121,598.37 and 51,451.26

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Solution

The fourth proportional to 81,041.34, 121,598.37 and 51,451.26 is: 77,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,041.34 : 121,598.37 = 51,451.26 : x
  2. Step 2: Convert to fraction form
    81,041.34/121,598.37 = 51,451.26/x
  3. Step 3: Cross multiply
    81,041.34x = 121,598.37 × 51,451.26
  4. Step 4: Simplify right side
    81,041.34x = 6,256,389,350.45
  5. Step 5: Solve for x
    x = 6,256,389,350.45/81,041.34
  6. Step 6: Final answer
    x = 77,199.97

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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.