Home / 55,581.31-76,702.04-30,430.63

Finding the Fourth Proportional to 55,581.31, 76,702.04 and 30,430.63

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Solution

The fourth proportional to 55,581.31, 76,702.04 and 30,430.63 is: 41,994.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,581.31 : 76,702.04 = 30,430.63 : x
  2. Step 2: Convert to fraction form
    55,581.31/76,702.04 = 30,430.63/x
  3. Step 3: Cross multiply
    55,581.31x = 76,702.04 × 30,430.63
  4. Step 4: Simplify right side
    55,581.31x = 2,334,091,015.98
  5. Step 5: Solve for x
    x = 2,334,091,015.98/55,581.31
  6. Step 6: Final answer
    x = 41,994.17

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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.