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Finding the Fourth Proportional to 70,170.76, 96,878.55 and 45,664.91

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Solution

The fourth proportional to 70,170.76, 96,878.55 and 45,664.91 is: 63,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,170.76 : 96,878.55 = 45,664.91 : x
  2. Step 2: Convert to fraction form
    70,170.76/96,878.55 = 45,664.91/x
  3. Step 3: Cross multiply
    70,170.76x = 96,878.55 × 45,664.91
  4. Step 4: Simplify right side
    70,170.76x = 4,423,950,604.90
  5. Step 5: Solve for x
    x = 4,423,950,604.90/70,170.76
  6. Step 6: Final answer
    x = 63,045.50

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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.