Home / 63,407.12-87,476.68-40,742.64

Finding the Fourth Proportional to 63,407.12, 87,476.68 and 40,742.64

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Solution

The fourth proportional to 63,407.12, 87,476.68 and 40,742.64 is: 56,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,407.12 : 87,476.68 = 40,742.64 : x
  2. Step 2: Convert to fraction form
    63,407.12/87,476.68 = 40,742.64/x
  3. Step 3: Cross multiply
    63,407.12x = 87,476.68 × 40,742.64
  4. Step 4: Simplify right side
    63,407.12x = 3,564,030,881.64
  5. Step 5: Solve for x
    x = 3,564,030,881.64/63,407.12
  6. Step 6: Final answer
    x = 56,208.69

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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.