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Finding the Fourth Proportional to 56,581.74, 78,053.51 and 38,433.39

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Solution

The fourth proportional to 56,581.74, 78,053.51 and 38,433.39 is: 53,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,581.74 : 78,053.51 = 38,433.39 : x
  2. Step 2: Convert to fraction form
    56,581.74/78,053.51 = 38,433.39/x
  3. Step 3: Cross multiply
    56,581.74x = 78,053.51 × 38,433.39
  4. Step 4: Simplify right side
    56,581.74x = 2,999,860,577.89
  5. Step 5: Solve for x
    x = 2,999,860,577.89/56,581.74
  6. Step 6: Final answer
    x = 53,018.17

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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.