Home / 87,167.40-120,316.77-51,368.94

Finding the Fourth Proportional to 87,167.40, 120,316.77 and 51,368.94

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Solution

The fourth proportional to 87,167.40, 120,316.77 and 51,368.94 is: 70,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,167.40 : 120,316.77 = 51,368.94 : x
  2. Step 2: Convert to fraction form
    87,167.40/120,316.77 = 51,368.94/x
  3. Step 3: Cross multiply
    87,167.40x = 120,316.77 × 51,368.94
  4. Step 4: Simplify right side
    87,167.40x = 6,180,544,939.12
  5. Step 5: Solve for x
    x = 6,180,544,939.12/87,167.40
  6. Step 6: Final answer
    x = 70,904.32

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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.