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Finding the Fourth Proportional to 56,270.40, 77,656.80 and 32,404.80

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Solution

The fourth proportional to 56,270.40, 77,656.80 and 32,404.80 is: 44,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,270.40 : 77,656.80 = 32,404.80 : x
  2. Step 2: Convert to fraction form
    56,270.40/77,656.80 = 32,404.80/x
  3. Step 3: Cross multiply
    56,270.40x = 77,656.80 × 32,404.80
  4. Step 4: Simplify right side
    56,270.40x = 2,516,453,072.64
  5. Step 5: Solve for x
    x = 2,516,453,072.64/56,270.40
  6. Step 6: Final answer
    x = 44,720.72

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1.5x scale

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.