Home / 78,698.35-118,002.24-46,689.76

Finding the Fourth Proportional to 78,698.35, 118,002.24 and 46,689.76

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Solution

The fourth proportional to 78,698.35, 118,002.24 and 46,689.76 is: 70,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,698.35 : 118,002.24 = 46,689.76 : x
  2. Step 2: Convert to fraction form
    78,698.35/118,002.24 = 46,689.76/x
  3. Step 3: Cross multiply
    78,698.35x = 118,002.24 × 46,689.76
  4. Step 4: Simplify right side
    78,698.35x = 5,509,496,265.06
  5. Step 5: Solve for x
    x = 5,509,496,265.06/78,698.35
  6. Step 6: Final answer
    x = 70,007.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.