Home / 71,779.24-99,054.37-39,948.14

Finding the Fourth Proportional to 71,779.24, 99,054.37 and 39,948.14

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Solution

The fourth proportional to 71,779.24, 99,054.37 and 39,948.14 is: 55,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,779.24 : 99,054.37 = 39,948.14 : x
  2. Step 2: Convert to fraction form
    71,779.24/99,054.37 = 39,948.14/x
  3. Step 3: Cross multiply
    71,779.24x = 99,054.37 × 39,948.14
  4. Step 4: Simplify right side
    71,779.24x = 3,957,037,988.14
  5. Step 5: Solve for x
    x = 3,957,037,988.14/71,779.24
  6. Step 6: Final answer
    x = 55,127.89

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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.