Home / 83,487.36-115,208.28-45,754.32

Finding the Fourth Proportional to 83,487.36, 115,208.28 and 45,754.32

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Solution

The fourth proportional to 83,487.36, 115,208.28 and 45,754.32 is: 63,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,487.36 : 115,208.28 = 45,754.32 : x
  2. Step 2: Convert to fraction form
    83,487.36/115,208.28 = 45,754.32/x
  3. Step 3: Cross multiply
    83,487.36x = 115,208.28 × 45,754.32
  4. Step 4: Simplify right side
    83,487.36x = 5,271,276,509.77
  5. Step 5: Solve for x
    x = 5,271,276,509.77/83,487.36
  6. Step 6: Final answer
    x = 63,138.62

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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.