Home / 35,621.40-53,432.10-31,830.60

Finding the Fourth Proportional to 35,621.40, 53,432.10 and 31,830.60

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Solution

The fourth proportional to 35,621.40, 53,432.10 and 31,830.60 is: 47,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,621.40 : 53,432.10 = 31,830.60 : x
  2. Step 2: Convert to fraction form
    35,621.40/53,432.10 = 31,830.60/x
  3. Step 3: Cross multiply
    35,621.40x = 53,432.10 × 31,830.60
  4. Step 4: Simplify right side
    35,621.40x = 1,700,775,802.26
  5. Step 5: Solve for x
    x = 1,700,775,802.26/35,621.40
  6. Step 6: Final answer
    x = 47,745.90

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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.