Home / 81,583.02-112,586.50-45,775.68

Finding the Fourth Proportional to 81,583.02, 112,586.50 and 45,775.68

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Solution

The fourth proportional to 81,583.02, 112,586.50 and 45,775.68 is: 63,171.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,583.02 : 112,586.50 = 45,775.68 : x
  2. Step 2: Convert to fraction form
    81,583.02/112,586.50 = 45,775.68/x
  3. Step 3: Cross multiply
    81,583.02x = 112,586.50 × 45,775.68
  4. Step 4: Simplify right side
    81,583.02x = 5,153,723,264.83
  5. Step 5: Solve for x
    x = 5,153,723,264.83/81,583.02
  6. Step 6: Final answer
    x = 63,171.52

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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.