Home / 82,811.40-114,276.30-45,085.56

Finding the Fourth Proportional to 82,811.40, 114,276.30 and 45,085.56

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Solution

The fourth proportional to 82,811.40, 114,276.30 and 45,085.56 is: 62,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,811.40 : 114,276.30 = 45,085.56 : x
  2. Step 2: Convert to fraction form
    82,811.40/114,276.30 = 45,085.56/x
  3. Step 3: Cross multiply
    82,811.40x = 114,276.30 × 45,085.56
  4. Step 4: Simplify right side
    82,811.40x = 5,152,210,980.23
  5. Step 5: Solve for x
    x = 5,152,210,980.23/82,811.40
  6. Step 6: Final answer
    x = 62,216.20

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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.