Home / 85,745.33-118,307.18-49,457.87

Finding the Fourth Proportional to 85,745.33, 118,307.18 and 49,457.87

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Solution

The fourth proportional to 85,745.33, 118,307.18 and 49,457.87 is: 68,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,745.33 : 118,307.18 = 49,457.87 : x
  2. Step 2: Convert to fraction form
    85,745.33/118,307.18 = 49,457.87/x
  3. Step 3: Cross multiply
    85,745.33x = 118,307.18 × 49,457.87
  4. Step 4: Simplify right side
    85,745.33x = 5,851,221,128.51
  5. Step 5: Solve for x
    x = 5,851,221,128.51/85,745.33
  6. Step 6: Final answer
    x = 68,239.53

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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.