Home / 56,969.57-78,622.60-31,478.16

Finding the Fourth Proportional to 56,969.57, 78,622.60 and 31,478.16

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Solution

The fourth proportional to 56,969.57, 78,622.60 and 31,478.16 is: 43,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,969.57 : 78,622.60 = 31,478.16 : x
  2. Step 2: Convert to fraction form
    56,969.57/78,622.60 = 31,478.16/x
  3. Step 3: Cross multiply
    56,969.57x = 78,622.60 × 31,478.16
  4. Step 4: Simplify right side
    56,969.57x = 2,474,894,782.42
  5. Step 5: Solve for x
    x = 2,474,894,782.42/56,969.57
  6. Step 6: Final answer
    x = 43,442.40

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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.