Home / 87,941.16-121,361.02-53,968.41

Finding the Fourth Proportional to 87,941.16, 121,361.02 and 53,968.41

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Solution

The fourth proportional to 87,941.16, 121,361.02 and 53,968.41 is: 74,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,941.16 : 121,361.02 = 53,968.41 : x
  2. Step 2: Convert to fraction form
    87,941.16/121,361.02 = 53,968.41/x
  3. Step 3: Cross multiply
    87,941.16x = 121,361.02 × 53,968.41
  4. Step 4: Simplify right side
    87,941.16x = 6,549,661,150.46
  5. Step 5: Solve for x
    x = 6,549,661,150.46/87,941.16
  6. Step 6: Final answer
    x = 74,477.77

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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.