Home / 72,364.78-99,897.60-48,507.04

Finding the Fourth Proportional to 72,364.78, 99,897.60 and 48,507.04

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Solution

The fourth proportional to 72,364.78, 99,897.60 and 48,507.04 is: 66,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,364.78 : 99,897.60 = 48,507.04 : x
  2. Step 2: Convert to fraction form
    72,364.78/99,897.60 = 48,507.04/x
  3. Step 3: Cross multiply
    72,364.78x = 99,897.60 × 48,507.04
  4. Step 4: Simplify right side
    72,364.78x = 4,845,736,879.10
  5. Step 5: Solve for x
    x = 4,845,736,879.10/72,364.78
  6. Step 6: Final answer
    x = 66,962.64

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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.