Home / 78,674.18-108,562.08-46,838.72

Finding the Fourth Proportional to 78,674.18, 108,562.08 and 46,838.72

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Solution

The fourth proportional to 78,674.18, 108,562.08 and 46,838.72 is: 64,632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,674.18 : 108,562.08 = 46,838.72 : x
  2. Step 2: Convert to fraction form
    78,674.18/108,562.08 = 46,838.72/x
  3. Step 3: Cross multiply
    78,674.18x = 108,562.08 × 46,838.72
  4. Step 4: Simplify right side
    78,674.18x = 5,084,908,867.74
  5. Step 5: Solve for x
    x = 5,084,908,867.74/78,674.18
  6. Step 6: Final answer
    x = 64,632.50

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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.