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Finding the Fourth Proportional to 91,612.84, 126,417.22 and 51,868.84

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Solution

The fourth proportional to 91,612.84, 126,417.22 and 51,868.84 is: 71,574.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,612.84 : 126,417.22 = 51,868.84 : x
  2. Step 2: Convert to fraction form
    91,612.84/126,417.22 = 51,868.84/x
  3. Step 3: Cross multiply
    91,612.84x = 126,417.22 × 51,868.84
  4. Step 4: Simplify right side
    91,612.84x = 6,557,114,557.42
  5. Step 5: Solve for x
    x = 6,557,114,557.42/91,612.84
  6. Step 6: Final answer
    x = 71,574.19

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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.