Home / 52,779.28-72,834.76-28,905.60

Finding the Fourth Proportional to 52,779.28, 72,834.76 and 28,905.60

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Solution

The fourth proportional to 52,779.28, 72,834.76 and 28,905.60 is: 39,889.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,779.28 : 72,834.76 = 28,905.60 : x
  2. Step 2: Convert to fraction form
    52,779.28/72,834.76 = 28,905.60/x
  3. Step 3: Cross multiply
    52,779.28x = 72,834.76 × 28,905.60
  4. Step 4: Simplify right side
    52,779.28x = 2,105,332,438.66
  5. Step 5: Solve for x
    x = 2,105,332,438.66/52,779.28
  6. Step 6: Final answer
    x = 39,889.37

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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.