Home / 72,484.36-99,985.94-45,584.20

Finding the Fourth Proportional to 72,484.36, 99,985.94 and 45,584.20

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Solution

The fourth proportional to 72,484.36, 99,985.94 and 45,584.20 is: 62,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,484.36 : 99,985.94 = 45,584.20 : x
  2. Step 2: Convert to fraction form
    72,484.36/99,985.94 = 45,584.20/x
  3. Step 3: Cross multiply
    72,484.36x = 99,985.94 × 45,584.20
  4. Step 4: Simplify right side
    72,484.36x = 4,557,779,086.15
  5. Step 5: Solve for x
    x = 4,557,779,086.15/72,484.36
  6. Step 6: Final answer
    x = 62,879.48

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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.