Home / 67,729.70-101,557.56-53,779.34

Finding the Fourth Proportional to 67,729.70, 101,557.56 and 53,779.34

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Solution

The fourth proportional to 67,729.70, 101,557.56 and 53,779.34 is: 80,639.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,729.70 : 101,557.56 = 53,779.34 : x
  2. Step 2: Convert to fraction form
    67,729.70/101,557.56 = 53,779.34/x
  3. Step 3: Cross multiply
    67,729.70x = 101,557.56 × 53,779.34
  4. Step 4: Simplify right side
    67,729.70x = 5,461,699,004.38
  5. Step 5: Solve for x
    x = 5,461,699,004.38/67,729.70
  6. Step 6: Final answer
    x = 80,639.64

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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.