Home / 50,342.40-69,465.74-31,215.20

Finding the Fourth Proportional to 50,342.40, 69,465.74 and 31,215.20

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Solution

The fourth proportional to 50,342.40, 69,465.74 and 31,215.20 is: 43,072.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,342.40 : 69,465.74 = 31,215.20 : x
  2. Step 2: Convert to fraction form
    50,342.40/69,465.74 = 31,215.20/x
  3. Step 3: Cross multiply
    50,342.40x = 69,465.74 × 31,215.20
  4. Step 4: Simplify right side
    50,342.40x = 2,168,386,463.84
  5. Step 5: Solve for x
    x = 2,168,386,463.84/50,342.40
  6. Step 6: Final answer
    x = 43,072.77

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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.