Home / 85,704.28-118,265.34-47,973.40

Finding the Fourth Proportional to 85,704.28, 118,265.34 and 47,973.40

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Solution

The fourth proportional to 85,704.28, 118,265.34 and 47,973.40 is: 66,199.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,704.28 : 118,265.34 = 47,973.40 : x
  2. Step 2: Convert to fraction form
    85,704.28/118,265.34 = 47,973.40/x
  3. Step 3: Cross multiply
    85,704.28x = 118,265.34 × 47,973.40
  4. Step 4: Simplify right side
    85,704.28x = 5,673,590,461.96
  5. Step 5: Solve for x
    x = 5,673,590,461.96/85,704.28
  6. Step 6: Final answer
    x = 66,199.62

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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.