Home / 87,763.63-121,113.44-47,477.29

Finding the Fourth Proportional to 87,763.63, 121,113.44 and 47,477.29

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Solution

The fourth proportional to 87,763.63, 121,113.44 and 47,477.29 is: 65,518.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,763.63 : 121,113.44 = 47,477.29 : x
  2. Step 2: Convert to fraction form
    87,763.63/121,113.44 = 47,477.29/x
  3. Step 3: Cross multiply
    87,763.63x = 121,113.44 × 47,477.29
  4. Step 4: Simplify right side
    87,763.63x = 5,750,137,913.78
  5. Step 5: Solve for x
    x = 5,750,137,913.78/87,763.63
  6. Step 6: Final answer
    x = 65,518.46

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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.