Home / 76,370.04-105,427.98-68,380.20

Finding the Fourth Proportional to 76,370.04, 105,427.98 and 68,380.20

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Solution

The fourth proportional to 76,370.04, 105,427.98 and 68,380.20 is: 94,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,370.04 : 105,427.98 = 68,380.20 : x
  2. Step 2: Convert to fraction form
    76,370.04/105,427.98 = 68,380.20/x
  3. Step 3: Cross multiply
    76,370.04x = 105,427.98 × 68,380.20
  4. Step 4: Simplify right side
    76,370.04x = 7,209,186,358.00
  5. Step 5: Solve for x
    x = 7,209,186,358.00/76,370.04
  6. Step 6: Final answer
    x = 94,398.10

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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.