Home / 85,500.60-117,987.14-47,258.16

Finding the Fourth Proportional to 85,500.60, 117,987.14 and 47,258.16

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Solution

The fourth proportional to 85,500.60, 117,987.14 and 47,258.16 is: 65,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,500.60 : 117,987.14 = 47,258.16 : x
  2. Step 2: Convert to fraction form
    85,500.60/117,987.14 = 47,258.16/x
  3. Step 3: Cross multiply
    85,500.60x = 117,987.14 × 47,258.16
  4. Step 4: Simplify right side
    85,500.60x = 5,575,855,140.06
  5. Step 5: Solve for x
    x = 5,575,855,140.06/85,500.60
  6. Step 6: Final answer
    x = 65,214.22

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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.