Home / 82,868.30-124,302.45-47,779.10

Finding the Fourth Proportional to 82,868.30, 124,302.45 and 47,779.10

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Solution

The fourth proportional to 82,868.30, 124,302.45 and 47,779.10 is: 71,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,868.30 : 124,302.45 = 47,779.10 : x
  2. Step 2: Convert to fraction form
    82,868.30/124,302.45 = 47,779.10/x
  3. Step 3: Cross multiply
    82,868.30x = 124,302.45 × 47,779.10
  4. Step 4: Simplify right side
    82,868.30x = 5,939,059,188.80
  5. Step 5: Solve for x
    x = 5,939,059,188.80/82,868.30
  6. Step 6: Final answer
    x = 71,668.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.