Home / 75,143.64-103,698.06-43,312.32

Finding the Fourth Proportional to 75,143.64, 103,698.06 and 43,312.32

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Solution

The fourth proportional to 75,143.64, 103,698.06 and 43,312.32 is: 59,770.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,143.64 : 103,698.06 = 43,312.32 : x
  2. Step 2: Convert to fraction form
    75,143.64/103,698.06 = 43,312.32/x
  3. Step 3: Cross multiply
    75,143.64x = 103,698.06 × 43,312.32
  4. Step 4: Simplify right side
    75,143.64x = 4,491,403,558.10
  5. Step 5: Solve for x
    x = 4,491,403,558.10/75,143.64
  6. Step 6: Final answer
    x = 59,770.91

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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.