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Finding the Fourth Proportional to 56,010, 77,294.04 and 30,858.96

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Solution

The fourth proportional to 56,010, 77,294.04 and 30,858.96 is: 42,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,010 : 77,294.04 = 30,858.96 : x
  2. Step 2: Convert to fraction form
    56,010/77,294.04 = 30,858.96/x
  3. Step 3: Cross multiply
    56,010x = 77,294.04 × 30,858.96
  4. Step 4: Simplify right side
    56,010x = 2,385,213,688.60
  5. Step 5: Solve for x
    x = 2,385,213,688.60/56,010
  6. Step 6: Final answer
    x = 42,585.50

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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.