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Finding the Fourth Proportional to 57,256.70, 85,885.66 and 15,703.70

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Solution

The fourth proportional to 57,256.70, 85,885.66 and 15,703.70 is: 23,555.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,256.70 : 85,885.66 = 15,703.70 : x
  2. Step 2: Convert to fraction form
    57,256.70/85,885.66 = 15,703.70/x
  3. Step 3: Cross multiply
    57,256.70x = 85,885.66 × 15,703.70
  4. Step 4: Simplify right side
    57,256.70x = 1,348,722,638.94
  5. Step 5: Solve for x
    x = 1,348,722,638.94/57,256.70
  6. Step 6: Final answer
    x = 23,555.72

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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.