Home / 53,361.07-73,643.12-31,000.75

Finding the Fourth Proportional to 53,361.07, 73,643.12 and 31,000.75

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Solution

The fourth proportional to 53,361.07, 73,643.12 and 31,000.75 is: 42,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,361.07 : 73,643.12 = 31,000.75 : x
  2. Step 2: Convert to fraction form
    53,361.07/73,643.12 = 31,000.75/x
  3. Step 3: Cross multiply
    53,361.07x = 73,643.12 × 31,000.75
  4. Step 4: Simplify right side
    53,361.07x = 2,282,991,952.34
  5. Step 5: Solve for x
    x = 2,282,991,952.34/53,361.07
  6. Step 6: Final answer
    x = 42,783.85

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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.