Home / 74,664.12-103,000.16-47,785.08

Finding the Fourth Proportional to 74,664.12, 103,000.16 and 47,785.08

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Solution

The fourth proportional to 74,664.12, 103,000.16 and 47,785.08 is: 65,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,664.12 : 103,000.16 = 47,785.08 : x
  2. Step 2: Convert to fraction form
    74,664.12/103,000.16 = 47,785.08/x
  3. Step 3: Cross multiply
    74,664.12x = 103,000.16 × 47,785.08
  4. Step 4: Simplify right side
    74,664.12x = 4,921,870,885.61
  5. Step 5: Solve for x
    x = 4,921,870,885.61/74,664.12
  6. Step 6: Final answer
    x = 65,920.16

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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.