Home / 85,860.48-118,485.69-47,613.86

Finding the Fourth Proportional to 85,860.48, 118,485.69 and 47,613.86

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Solution

The fourth proportional to 85,860.48, 118,485.69 and 47,613.86 is: 65,706.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,860.48 : 118,485.69 = 47,613.86 : x
  2. Step 2: Convert to fraction form
    85,860.48/118,485.69 = 47,613.86/x
  3. Step 3: Cross multiply
    85,860.48x = 118,485.69 × 47,613.86
  4. Step 4: Simplify right side
    85,860.48x = 5,641,561,130.75
  5. Step 5: Solve for x
    x = 5,641,561,130.75/85,860.48
  6. Step 6: Final answer
    x = 65,706.14

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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.