Home / 53,729.04-74,155.53-31,064.43

Finding the Fourth Proportional to 53,729.04, 74,155.53 and 31,064.43

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Solution

The fourth proportional to 53,729.04, 74,155.53 and 31,064.43 is: 42,874.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,729.04 : 74,155.53 = 31,064.43 : x
  2. Step 2: Convert to fraction form
    53,729.04/74,155.53 = 31,064.43/x
  3. Step 3: Cross multiply
    53,729.04x = 74,155.53 × 31,064.43
  4. Step 4: Simplify right side
    53,729.04x = 2,303,598,986.14
  5. Step 5: Solve for x
    x = 2,303,598,986.14/53,729.04
  6. Step 6: Final answer
    x = 42,874.38

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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.