Home / 81,345.44-112,262.28-45,534.53

Finding the Fourth Proportional to 81,345.44, 112,262.28 and 45,534.53

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Solution

The fourth proportional to 81,345.44, 112,262.28 and 45,534.53 is: 62,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,345.44 : 112,262.28 = 45,534.53 : x
  2. Step 2: Convert to fraction form
    81,345.44/112,262.28 = 45,534.53/x
  3. Step 3: Cross multiply
    81,345.44x = 112,262.28 × 45,534.53
  4. Step 4: Simplify right side
    81,345.44x = 5,111,810,156.53
  5. Step 5: Solve for x
    x = 5,111,810,156.53/81,345.44
  6. Step 6: Final answer
    x = 62,840.77

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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.