Home / 51,985.84-71,656.20-40,635.28

Finding the Fourth Proportional to 51,985.84, 71,656.20 and 40,635.28

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Solution

The fourth proportional to 51,985.84, 71,656.20 and 40,635.28 is: 56,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,985.84 : 71,656.20 = 40,635.28 : x
  2. Step 2: Convert to fraction form
    51,985.84/71,656.20 = 40,635.28/x
  3. Step 3: Cross multiply
    51,985.84x = 71,656.20 × 40,635.28
  4. Step 4: Simplify right side
    51,985.84x = 2,911,769,750.74
  5. Step 5: Solve for x
    x = 2,911,769,750.74/51,985.84
  6. Step 6: Final answer
    x = 56,010.82

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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.