Home / 61,929.23-85,497.80-40,770

Finding the Fourth Proportional to 61,929.23, 85,497.80 and 40,770

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Solution

The fourth proportional to 61,929.23, 85,497.80 and 40,770 is: 56,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,929.23 : 85,497.80 = 40,770 : x
  2. Step 2: Convert to fraction form
    61,929.23/85,497.80 = 40,770/x
  3. Step 3: Cross multiply
    61,929.23x = 85,497.80 × 40,770
  4. Step 4: Simplify right side
    61,929.23x = 3,485,745,102.15
  5. Step 5: Solve for x
    x = 3,485,745,102.15/61,929.23
  6. Step 6: Final answer
    x = 56,285.95

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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.