Home / 84,042.86-115,977.58-45,802.72

Finding the Fourth Proportional to 84,042.86, 115,977.58 and 45,802.72

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Solution

The fourth proportional to 84,042.86, 115,977.58 and 45,802.72 is: 63,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,042.86 : 115,977.58 = 45,802.72 : x
  2. Step 2: Convert to fraction form
    84,042.86/115,977.58 = 45,802.72/x
  3. Step 3: Cross multiply
    84,042.86x = 115,977.58 × 45,802.72
  4. Step 4: Simplify right side
    84,042.86x = 5,312,088,623.02
  5. Step 5: Solve for x
    x = 5,312,088,623.02/84,042.86
  6. Step 6: Final answer
    x = 63,206.90

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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.