Home / 69,909.06-96,451.48-40,830.74

Finding the Fourth Proportional to 69,909.06, 96,451.48 and 40,830.74

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Solution

The fourth proportional to 69,909.06, 96,451.48 and 40,830.74 is: 56,332.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,909.06 : 96,451.48 = 40,830.74 : x
  2. Step 2: Convert to fraction form
    69,909.06/96,451.48 = 40,830.74/x
  3. Step 3: Cross multiply
    69,909.06x = 96,451.48 × 40,830.74
  4. Step 4: Simplify right side
    69,909.06x = 3,938,185,363.84
  5. Step 5: Solve for x
    x = 3,938,185,363.84/69,909.06
  6. Step 6: Final answer
    x = 56,332.98

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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.