Home / 88,261.70-121,829.01-56,430.73

Finding the Fourth Proportional to 88,261.70, 121,829.01 and 56,430.73

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Solution

The fourth proportional to 88,261.70, 121,829.01 and 56,430.73 is: 77,892.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,261.70 : 121,829.01 = 56,430.73 : x
  2. Step 2: Convert to fraction form
    88,261.70/121,829.01 = 56,430.73/x
  3. Step 3: Cross multiply
    88,261.70x = 121,829.01 × 56,430.73
  4. Step 4: Simplify right side
    88,261.70x = 6,874,899,360.33
  5. Step 5: Solve for x
    x = 6,874,899,360.33/88,261.70
  6. Step 6: Final answer
    x = 77,892.22

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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.