Home / 52,346.40-72,247.20-31,137.60

Finding the Fourth Proportional to 52,346.40, 72,247.20 and 31,137.60

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Solution

The fourth proportional to 52,346.40, 72,247.20 and 31,137.60 is: 42,975.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,346.40 : 72,247.20 = 31,137.60 : x
  2. Step 2: Convert to fraction form
    52,346.40/72,247.20 = 31,137.60/x
  3. Step 3: Cross multiply
    52,346.40x = 72,247.20 × 31,137.60
  4. Step 4: Simplify right side
    52,346.40x = 2,249,604,414.72
  5. Step 5: Solve for x
    x = 2,249,604,414.72/52,346.40
  6. Step 6: Final answer
    x = 42,975.34

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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.