Home / 45,580.75-68,368.52-13,990.76

Finding the Fourth Proportional to 45,580.75, 68,368.52 and 13,990.76

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Solution

The fourth proportional to 45,580.75, 68,368.52 and 13,990.76 is: 20,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,580.75 : 68,368.52 = 13,990.76 : x
  2. Step 2: Convert to fraction form
    45,580.75/68,368.52 = 13,990.76/x
  3. Step 3: Cross multiply
    45,580.75x = 68,368.52 × 13,990.76
  4. Step 4: Simplify right side
    45,580.75x = 956,527,554.88
  5. Step 5: Solve for x
    x = 956,527,554.88/45,580.75
  6. Step 6: Final answer
    x = 20,985.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.