Home / 52,356.40-72,242.04-31,140.88

Finding the Fourth Proportional to 52,356.40, 72,242.04 and 31,140.88

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Solution

The fourth proportional to 52,356.40, 72,242.04 and 31,140.88 is: 42,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,356.40 : 72,242.04 = 31,140.88 : x
  2. Step 2: Convert to fraction form
    52,356.40/72,242.04 = 31,140.88/x
  3. Step 3: Cross multiply
    52,356.40x = 72,242.04 × 31,140.88
  4. Step 4: Simplify right side
    52,356.40x = 2,249,680,698.60
  5. Step 5: Solve for x
    x = 2,249,680,698.60/52,356.40
  6. Step 6: Final answer
    x = 42,968.59

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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.