Home / 92,787.66-128,047.50-50,346.36

Finding the Fourth Proportional to 92,787.66, 128,047.50 and 50,346.36

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Solution

The fourth proportional to 92,787.66, 128,047.50 and 50,346.36 is: 69,478.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,787.66 : 128,047.50 = 50,346.36 : x
  2. Step 2: Convert to fraction form
    92,787.66/128,047.50 = 50,346.36/x
  3. Step 3: Cross multiply
    92,787.66x = 128,047.50 × 50,346.36
  4. Step 4: Simplify right side
    92,787.66x = 6,446,725,532.10
  5. Step 5: Solve for x
    x = 6,446,725,532.10/92,787.66
  6. Step 6: Final answer
    x = 69,478.26

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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.