Home / 64,470.12-96,705.21-20,100.45

Finding the Fourth Proportional to 64,470.12, 96,705.21 and 20,100.45

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Solution

The fourth proportional to 64,470.12, 96,705.21 and 20,100.45 is: 30,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,470.12 : 96,705.21 = 20,100.45 : x
  2. Step 2: Convert to fraction form
    64,470.12/96,705.21 = 20,100.45/x
  3. Step 3: Cross multiply
    64,470.12x = 96,705.21 × 20,100.45
  4. Step 4: Simplify right side
    64,470.12x = 1,943,818,238.34
  5. Step 5: Solve for x
    x = 1,943,818,238.34/64,470.12
  6. Step 6: Final answer
    x = 30,150.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.