Home / 55,385.49-76,429.30-31,509.93

Finding the Fourth Proportional to 55,385.49, 76,429.30 and 31,509.93

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Solution

The fourth proportional to 55,385.49, 76,429.30 and 31,509.93 is: 43,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,385.49 : 76,429.30 = 31,509.93 : x
  2. Step 2: Convert to fraction form
    55,385.49/76,429.30 = 31,509.93/x
  3. Step 3: Cross multiply
    55,385.49x = 76,429.30 × 31,509.93
  4. Step 4: Simplify right side
    55,385.49x = 2,408,281,892.95
  5. Step 5: Solve for x
    x = 2,408,281,892.95/55,385.49
  6. Step 6: Final answer
    x = 43,482.18

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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.