Home / 64,917.19-97,387.80-20,555.11

Finding the Fourth Proportional to 64,917.19, 97,387.80 and 20,555.11

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Solution

The fourth proportional to 64,917.19, 97,387.80 and 20,555.11 is: 30,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,917.19 : 97,387.80 = 20,555.11 : x
  2. Step 2: Convert to fraction form
    64,917.19/97,387.80 = 20,555.11/x
  3. Step 3: Cross multiply
    64,917.19x = 97,387.80 × 20,555.11
  4. Step 4: Simplify right side
    64,917.19x = 2,001,816,941.66
  5. Step 5: Solve for x
    x = 2,001,816,941.66/64,917.19
  6. Step 6: Final answer
    x = 30,836.47

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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.