Home / 76,210.92-105,113.28-66,763.08

Finding the Fourth Proportional to 76,210.92, 105,113.28 and 66,763.08

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Solution

The fourth proportional to 76,210.92, 105,113.28 and 66,763.08 is: 92,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,210.92 : 105,113.28 = 66,763.08 : x
  2. Step 2: Convert to fraction form
    76,210.92/105,113.28 = 66,763.08/x
  3. Step 3: Cross multiply
    76,210.92x = 105,113.28 × 66,763.08
  4. Step 4: Simplify right side
    76,210.92x = 7,017,686,321.70
  5. Step 5: Solve for x
    x = 7,017,686,321.70/76,210.92
  6. Step 6: Final answer
    x = 92,082.42

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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.