Home / 87,751.84-121,045.32-53,284.72

Finding the Fourth Proportional to 87,751.84, 121,045.32 and 53,284.72

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Solution

The fourth proportional to 87,751.84, 121,045.32 and 53,284.72 is: 73,501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,751.84 : 121,045.32 = 53,284.72 : x
  2. Step 2: Convert to fraction form
    87,751.84/121,045.32 = 53,284.72/x
  3. Step 3: Cross multiply
    87,751.84x = 121,045.32 × 53,284.72
  4. Step 4: Simplify right side
    87,751.84x = 6,449,865,983.51
  5. Step 5: Solve for x
    x = 6,449,865,983.51/87,751.84
  6. Step 6: Final answer
    x = 73,501.21

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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.