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Finding the Fourth Proportional to 56,447.78, 77,880.15 and 35,239.32

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Solution

The fourth proportional to 56,447.78, 77,880.15 and 35,239.32 is: 48,619.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,447.78 : 77,880.15 = 35,239.32 : x
  2. Step 2: Convert to fraction form
    56,447.78/77,880.15 = 35,239.32/x
  3. Step 3: Cross multiply
    56,447.78x = 77,880.15 × 35,239.32
  4. Step 4: Simplify right side
    56,447.78x = 2,744,443,527.50
  5. Step 5: Solve for x
    x = 2,744,443,527.50/56,447.78
  6. Step 6: Final answer
    x = 48,619.16

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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.