Home / 105,580.91-145,701.68-57,835.95

Finding the Fourth Proportional to 105,580.91, 145,701.68 and 57,835.95

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Solution

The fourth proportional to 105,580.91, 145,701.68 and 57,835.95 is: 79,813.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,580.91 : 145,701.68 = 57,835.95 : x
  2. Step 2: Convert to fraction form
    105,580.91/145,701.68 = 57,835.95/x
  3. Step 3: Cross multiply
    105,580.91x = 145,701.68 × 57,835.95
  4. Step 4: Simplify right side
    105,580.91x = 8,426,795,079.40
  5. Step 5: Solve for x
    x = 8,426,795,079.40/105,580.91
  6. Step 6: Final answer
    x = 79,813.62

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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.