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Finding the Fourth Proportional to 35,432.40, 53,148.60 and 31,803.60

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Solution

The fourth proportional to 35,432.40, 53,148.60 and 31,803.60 is: 47,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,432.40 : 53,148.60 = 31,803.60 : x
  2. Step 2: Convert to fraction form
    35,432.40/53,148.60 = 31,803.60/x
  3. Step 3: Cross multiply
    35,432.40x = 53,148.60 × 31,803.60
  4. Step 4: Simplify right side
    35,432.40x = 1,690,316,814.96
  5. Step 5: Solve for x
    x = 1,690,316,814.96/35,432.40
  6. Step 6: Final answer
    x = 47,705.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.