Home / 52,649.58-72,661.40-28,779.80

Finding the Fourth Proportional to 52,649.58, 72,661.40 and 28,779.80

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Solution

The fourth proportional to 52,649.58, 72,661.40 and 28,779.80 is: 39,718.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,649.58 : 72,661.40 = 28,779.80 : x
  2. Step 2: Convert to fraction form
    52,649.58/72,661.40 = 28,779.80/x
  3. Step 3: Cross multiply
    52,649.58x = 72,661.40 × 28,779.80
  4. Step 4: Simplify right side
    52,649.58x = 2,091,180,052.51
  5. Step 5: Solve for x
    x = 2,091,180,052.51/52,649.58
  6. Step 6: Final answer
    x = 39,718.84

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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.