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Finding the Fourth Proportional to 88,012.77, 121,478.81 and 51,722.22

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Solution

The fourth proportional to 88,012.77, 121,478.81 and 51,722.22 is: 71,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,012.77 : 121,478.81 = 51,722.22 : x
  2. Step 2: Convert to fraction form
    88,012.77/121,478.81 = 51,722.22/x
  3. Step 3: Cross multiply
    88,012.77x = 121,478.81 × 51,722.22
  4. Step 4: Simplify right side
    88,012.77x = 6,283,153,736.16
  5. Step 5: Solve for x
    x = 6,283,153,736.16/88,012.77
  6. Step 6: Final answer
    x = 71,389.11

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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.