Home / 63,126.45-87,077.77-40,457.39

Finding the Fourth Proportional to 63,126.45, 87,077.77 and 40,457.39

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Solution

The fourth proportional to 63,126.45, 87,077.77 and 40,457.39 is: 55,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,126.45 : 87,077.77 = 40,457.39 : x
  2. Step 2: Convert to fraction form
    63,126.45/87,077.77 = 40,457.39/x
  3. Step 3: Cross multiply
    63,126.45x = 87,077.77 × 40,457.39
  4. Step 4: Simplify right side
    63,126.45x = 3,522,938,764.69
  5. Step 5: Solve for x
    x = 3,522,938,764.69/63,126.45
  6. Step 6: Final answer
    x = 55,807.65

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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.