Home / 81,801.21-112,884.54-45,502.32

Finding the Fourth Proportional to 81,801.21, 112,884.54 and 45,502.32

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Solution

The fourth proportional to 81,801.21, 112,884.54 and 45,502.32 is: 62,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,801.21 : 112,884.54 = 45,502.32 : x
  2. Step 2: Convert to fraction form
    81,801.21/112,884.54 = 45,502.32/x
  3. Step 3: Cross multiply
    81,801.21x = 112,884.54 × 45,502.32
  4. Step 4: Simplify right side
    81,801.21x = 5,136,508,462.13
  5. Step 5: Solve for x
    x = 5,136,508,462.13/81,801.21
  6. Step 6: Final answer
    x = 62,792.57

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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.