Home / 79,623.96-109,881.90-45,631.68

Finding the Fourth Proportional to 79,623.96, 109,881.90 and 45,631.68

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Solution

The fourth proportional to 79,623.96, 109,881.90 and 45,631.68 is: 62,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,623.96 : 109,881.90 = 45,631.68 : x
  2. Step 2: Convert to fraction form
    79,623.96/109,881.90 = 45,631.68/x
  3. Step 3: Cross multiply
    79,623.96x = 109,881.90 × 45,631.68
  4. Step 4: Simplify right side
    79,623.96x = 5,014,095,698.59
  5. Step 5: Solve for x
    x = 5,014,095,698.59/79,623.96
  6. Step 6: Final answer
    x = 62,972.20

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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.