Home / 85,099.40-117,360.72-53,271.20

Finding the Fourth Proportional to 85,099.40, 117,360.72 and 53,271.20

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Solution

The fourth proportional to 85,099.40, 117,360.72 and 53,271.20 is: 73,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,099.40 : 117,360.72 = 53,271.20 : x
  2. Step 2: Convert to fraction form
    85,099.40/117,360.72 = 53,271.20/x
  3. Step 3: Cross multiply
    85,099.40x = 117,360.72 × 53,271.20
  4. Step 4: Simplify right side
    85,099.40x = 6,251,946,387.26
  5. Step 5: Solve for x
    x = 6,251,946,387.26/85,099.40
  6. Step 6: Final answer
    x = 73,466.40

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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.