Home / 71,045.42-98,042.21-38,779.91

Finding the Fourth Proportional to 71,045.42, 98,042.21 and 38,779.91

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Solution

The fourth proportional to 71,045.42, 98,042.21 and 38,779.91 is: 53,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,045.42 : 98,042.21 = 38,779.91 : x
  2. Step 2: Convert to fraction form
    71,045.42/98,042.21 = 38,779.91/x
  3. Step 3: Cross multiply
    71,045.42x = 98,042.21 × 38,779.91
  4. Step 4: Simplify right side
    71,045.42x = 3,802,067,886.10
  5. Step 5: Solve for x
    x = 3,802,067,886.10/71,045.42
  6. Step 6: Final answer
    x = 53,516.02

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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.