Home / 81,590.14-112,596.33-45,782.79

Finding the Fourth Proportional to 81,590.14, 112,596.33 and 45,782.79

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Solution

The fourth proportional to 81,590.14, 112,596.33 and 45,782.79 is: 63,181.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,590.14 : 112,596.33 = 45,782.79 : x
  2. Step 2: Convert to fraction form
    81,590.14/112,596.33 = 45,782.79/x
  3. Step 3: Cross multiply
    81,590.14x = 112,596.33 × 45,782.79
  4. Step 4: Simplify right side
    81,590.14x = 5,154,974,573.11
  5. Step 5: Solve for x
    x = 5,154,974,573.11/81,590.14
  6. Step 6: Final answer
    x = 63,181.35

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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.