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Finding the Fourth Proportional to 56,956.68, 85,434.84 and 15,403.68

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Solution

The fourth proportional to 56,956.68, 85,434.84 and 15,403.68 is: 23,105.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,956.68 : 85,434.84 = 15,403.68 : x
  2. Step 2: Convert to fraction form
    56,956.68/85,434.84 = 15,403.68/x
  3. Step 3: Cross multiply
    56,956.68x = 85,434.84 × 15,403.68
  4. Step 4: Simplify right side
    56,956.68x = 1,316,010,936.21
  5. Step 5: Solve for x
    x = 1,316,010,936.21/56,956.68
  6. Step 6: Final answer
    x = 23,105.47

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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.