Home / 82,860.90-124,291.35-76,445.70

Finding the Fourth Proportional to 82,860.90, 124,291.35 and 76,445.70

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Solution

The fourth proportional to 82,860.90, 124,291.35 and 76,445.70 is: 114,668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,860.90 : 124,291.35 = 76,445.70 : x
  2. Step 2: Convert to fraction form
    82,860.90/124,291.35 = 76,445.70/x
  3. Step 3: Cross multiply
    82,860.90x = 124,291.35 × 76,445.70
  4. Step 4: Simplify right side
    82,860.90x = 9,501,539,254.70
  5. Step 5: Solve for x
    x = 9,501,539,254.70/82,860.90
  6. Step 6: Final answer
    x = 114,668.55

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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.