Home / 72,055.86-99,408.51-48,144.66

Finding the Fourth Proportional to 72,055.86, 99,408.51 and 48,144.66

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Solution

The fourth proportional to 72,055.86, 99,408.51 and 48,144.66 is: 66,420.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,055.86 : 99,408.51 = 48,144.66 : x
  2. Step 2: Convert to fraction form
    72,055.86/99,408.51 = 48,144.66/x
  3. Step 3: Cross multiply
    72,055.86x = 99,408.51 × 48,144.66
  4. Step 4: Simplify right side
    72,055.86x = 4,785,988,915.06
  5. Step 5: Solve for x
    x = 4,785,988,915.06/72,055.86
  6. Step 6: Final answer
    x = 66,420.54

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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.