Home / 76,889.62-106,118.16-45,071.20

Finding the Fourth Proportional to 76,889.62, 106,118.16 and 45,071.20

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Solution

The fourth proportional to 76,889.62, 106,118.16 and 45,071.20 is: 62,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,889.62 : 106,118.16 = 45,071.20 : x
  2. Step 2: Convert to fraction form
    76,889.62/106,118.16 = 45,071.20/x
  3. Step 3: Cross multiply
    76,889.62x = 106,118.16 × 45,071.20
  4. Step 4: Simplify right side
    76,889.62x = 4,782,872,812.99
  5. Step 5: Solve for x
    x = 4,782,872,812.99/76,889.62
  6. Step 6: Final answer
    x = 62,204.40

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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.