Home / 72,217.36-99,673.75-48,385.59

Finding the Fourth Proportional to 72,217.36, 99,673.75 and 48,385.59

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Solution

The fourth proportional to 72,217.36, 99,673.75 and 48,385.59 is: 66,781.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,217.36 : 99,673.75 = 48,385.59 : x
  2. Step 2: Convert to fraction form
    72,217.36/99,673.75 = 48,385.59/x
  3. Step 3: Cross multiply
    72,217.36x = 99,673.75 × 48,385.59
  4. Step 4: Simplify right side
    72,217.36x = 4,822,773,201.26
  5. Step 5: Solve for x
    x = 4,822,773,201.26/72,217.36
  6. Step 6: Final answer
    x = 66,781.36

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1.5x scale

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.