Home / 87,056.17-130,409.29-45,415.69

Finding the Fourth Proportional to 87,056.17, 130,409.29 and 45,415.69

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Solution

The fourth proportional to 87,056.17, 130,409.29 and 45,415.69 is: 68,032.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,056.17 : 130,409.29 = 45,415.69 : x
  2. Step 2: Convert to fraction form
    87,056.17/130,409.29 = 45,415.69/x
  3. Step 3: Cross multiply
    87,056.17x = 130,409.29 × 45,415.69
  4. Step 4: Simplify right side
    87,056.17x = 5,922,627,618.51
  5. Step 5: Solve for x
    x = 5,922,627,618.51/87,056.17
  6. Step 6: Final answer
    x = 68,032.26

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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.