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Finding the Fourth Proportional to 86,309.79, 119,175.08 and 67,500.51

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Solution

The fourth proportional to 86,309.79, 119,175.08 and 67,500.51 is: 93,203.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,309.79 : 119,175.08 = 67,500.51 : x
  2. Step 2: Convert to fraction form
    86,309.79/119,175.08 = 67,500.51/x
  3. Step 3: Cross multiply
    86,309.79x = 119,175.08 × 67,500.51
  4. Step 4: Simplify right side
    86,309.79x = 8,044,378,341.79
  5. Step 5: Solve for x
    x = 8,044,378,341.79/86,309.79
  6. Step 6: Final answer
    x = 93,203.54

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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.