Home / 83,602.72-115,375.08-45,878.32

Finding the Fourth Proportional to 83,602.72, 115,375.08 and 45,878.32

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Solution

The fourth proportional to 83,602.72, 115,375.08 and 45,878.32 is: 63,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,602.72 : 115,375.08 = 45,878.32 : x
  2. Step 2: Convert to fraction form
    83,602.72/115,375.08 = 45,878.32/x
  3. Step 3: Cross multiply
    83,602.72x = 115,375.08 × 45,878.32
  4. Step 4: Simplify right side
    83,602.72x = 5,293,214,840.27
  5. Step 5: Solve for x
    x = 5,293,214,840.27/83,602.72
  6. Step 6: Final answer
    x = 63,313.91

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1.5x scale

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.