Home / 84,439.16-126,612-34,554.32

Finding the Fourth Proportional to 84,439.16, 126,612 and 34,554.32

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Solution

The fourth proportional to 84,439.16, 126,612 and 34,554.32 is: 51,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,439.16 : 126,612 = 34,554.32 : x
  2. Step 2: Convert to fraction form
    84,439.16/126,612 = 34,554.32/x
  3. Step 3: Cross multiply
    84,439.16x = 126,612 × 34,554.32
  4. Step 4: Simplify right side
    84,439.16x = 4,374,991,563.84
  5. Step 5: Solve for x
    x = 4,374,991,563.84/84,439.16
  6. Step 6: Final answer
    x = 51,812.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.