Home / 79,460.12-109,628.21-45,000.15

Finding the Fourth Proportional to 79,460.12, 109,628.21 and 45,000.15

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Solution

The fourth proportional to 79,460.12, 109,628.21 and 45,000.15 is: 62,085.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,460.12 : 109,628.21 = 45,000.15 : x
  2. Step 2: Convert to fraction form
    79,460.12/109,628.21 = 45,000.15/x
  3. Step 3: Cross multiply
    79,460.12x = 109,628.21 × 45,000.15
  4. Step 4: Simplify right side
    79,460.12x = 4,933,285,669.23
  5. Step 5: Solve for x
    x = 4,933,285,669.23/79,460.12
  6. Step 6: Final answer
    x = 62,085.06

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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.