Home / 76,835.71-106,030.66-42,381.81

Finding the Fourth Proportional to 76,835.71, 106,030.66 and 42,381.81

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Solution

The fourth proportional to 76,835.71, 106,030.66 and 42,381.81 is: 58,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,835.71 : 106,030.66 = 42,381.81 : x
  2. Step 2: Convert to fraction form
    76,835.71/106,030.66 = 42,381.81/x
  3. Step 3: Cross multiply
    76,835.71x = 106,030.66 × 42,381.81
  4. Step 4: Simplify right side
    76,835.71x = 4,493,771,286.29
  5. Step 5: Solve for x
    x = 4,493,771,286.29/76,835.71
  6. Step 6: Final answer
    x = 58,485.45

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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.