Home / 85,580.10-118,103.76-47,854.26

Finding the Fourth Proportional to 85,580.10, 118,103.76 and 47,854.26

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Solution

The fourth proportional to 85,580.10, 118,103.76 and 47,854.26 is: 66,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,580.10 : 118,103.76 = 47,854.26 : x
  2. Step 2: Convert to fraction form
    85,580.10/118,103.76 = 47,854.26/x
  3. Step 3: Cross multiply
    85,580.10x = 118,103.76 × 47,854.26
  4. Step 4: Simplify right side
    85,580.10x = 5,651,768,038.02
  5. Step 5: Solve for x
    x = 5,651,768,038.02/85,580.10
  6. Step 6: Final answer
    x = 66,040.68

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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.