Home / 81,453.96-112,395.06-45,641.16

Finding the Fourth Proportional to 81,453.96, 112,395.06 and 45,641.16

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Solution

The fourth proportional to 81,453.96, 112,395.06 and 45,641.16 is: 62,978.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,453.96 : 112,395.06 = 45,641.16 : x
  2. Step 2: Convert to fraction form
    81,453.96/112,395.06 = 45,641.16/x
  3. Step 3: Cross multiply
    81,453.96x = 112,395.06 × 45,641.16
  4. Step 4: Simplify right side
    81,453.96x = 5,129,840,916.67
  5. Step 5: Solve for x
    x = 5,129,840,916.67/81,453.96
  6. Step 6: Final answer
    x = 62,978.41

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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.