Home / 74,730.08-103,134.76-55,834.40

Finding the Fourth Proportional to 74,730.08, 103,134.76 and 55,834.40

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Solution

The fourth proportional to 74,730.08, 103,134.76 and 55,834.40 is: 77,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,730.08 : 103,134.76 = 55,834.40 : x
  2. Step 2: Convert to fraction form
    74,730.08/103,134.76 = 55,834.40/x
  3. Step 3: Cross multiply
    74,730.08x = 103,134.76 × 55,834.40
  4. Step 4: Simplify right side
    74,730.08x = 5,758,467,443.74
  5. Step 5: Solve for x
    x = 5,758,467,443.74/74,730.08
  6. Step 6: Final answer
    x = 77,056.89

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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.