Home / 65,155.13-89,913.47-36,860.81

Finding the Fourth Proportional to 65,155.13, 89,913.47 and 36,860.81

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Solution

The fourth proportional to 65,155.13, 89,913.47 and 36,860.81 is: 50,867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,155.13 : 89,913.47 = 36,860.81 : x
  2. Step 2: Convert to fraction form
    65,155.13/89,913.47 = 36,860.81/x
  3. Step 3: Cross multiply
    65,155.13x = 89,913.47 × 36,860.81
  4. Step 4: Simplify right side
    65,155.13x = 3,314,283,374.59
  5. Step 5: Solve for x
    x = 3,314,283,374.59/65,155.13
  6. Step 6: Final answer
    x = 50,867.58

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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.