Home / 52,740.50-72,779.09-28,862.55

Finding the Fourth Proportional to 52,740.50, 72,779.09 and 28,862.55

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Solution

The fourth proportional to 52,740.50, 72,779.09 and 28,862.55 is: 39,828.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,740.50 : 72,779.09 = 28,862.55 : x
  2. Step 2: Convert to fraction form
    52,740.50/72,779.09 = 28,862.55/x
  3. Step 3: Cross multiply
    52,740.50x = 72,779.09 × 28,862.55
  4. Step 4: Simplify right side
    52,740.50x = 2,100,589,979.77
  5. Step 5: Solve for x
    x = 2,100,589,979.77/52,740.50
  6. Step 6: Final answer
    x = 39,828.79

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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.