Home / 81,933.64-113,038.66-47,931.48

Finding the Fourth Proportional to 81,933.64, 113,038.66 and 47,931.48

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Solution

The fourth proportional to 81,933.64, 113,038.66 and 47,931.48 is: 66,128.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,933.64 : 113,038.66 = 47,931.48 : x
  2. Step 2: Convert to fraction form
    81,933.64/113,038.66 = 47,931.48/x
  3. Step 3: Cross multiply
    81,933.64x = 113,038.66 × 47,931.48
  4. Step 4: Simplify right side
    81,933.64x = 5,418,110,271.02
  5. Step 5: Solve for x
    x = 5,418,110,271.02/81,933.64
  6. Step 6: Final answer
    x = 66,128.03

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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.