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Finding the Fourth Proportional to 92,015.51, 126,969.05 and 51,721.25

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Solution

The fourth proportional to 92,015.51, 126,969.05 and 51,721.25 is: 71,368.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,015.51 : 126,969.05 = 51,721.25 : x
  2. Step 2: Convert to fraction form
    92,015.51/126,969.05 = 51,721.25/x
  3. Step 3: Cross multiply
    92,015.51x = 126,969.05 × 51,721.25
  4. Step 4: Simplify right side
    92,015.51x = 6,566,997,471.77
  5. Step 5: Solve for x
    x = 6,566,997,471.77/92,015.51
  6. Step 6: Final answer
    x = 71,368.38

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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.