Home / 51,381.75-77,085.60-14,445.75

Finding the Fourth Proportional to 51,381.75, 77,085.60 and 14,445.75

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Solution

The fourth proportional to 51,381.75, 77,085.60 and 14,445.75 is: 21,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,381.75 : 77,085.60 = 14,445.75 : x
  2. Step 2: Convert to fraction form
    51,381.75/77,085.60 = 14,445.75/x
  3. Step 3: Cross multiply
    51,381.75x = 77,085.60 × 14,445.75
  4. Step 4: Simplify right side
    51,381.75x = 1,113,559,306.20
  5. Step 5: Solve for x
    x = 1,113,559,306.20/51,381.75
  6. Step 6: Final answer
    x = 21,672.27

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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.