Home / 85,622.40-118,154.16-47,889.36

Finding the Fourth Proportional to 85,622.40, 118,154.16 and 47,889.36

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Solution

The fourth proportional to 85,622.40, 118,154.16 and 47,889.36 is: 66,084.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,622.40 : 118,154.16 = 47,889.36 : x
  2. Step 2: Convert to fraction form
    85,622.40/118,154.16 = 47,889.36/x
  3. Step 3: Cross multiply
    85,622.40x = 118,154.16 × 47,889.36
  4. Step 4: Simplify right side
    85,622.40x = 5,658,327,103.74
  5. Step 5: Solve for x
    x = 5,658,327,103.74/85,622.40
  6. Step 6: Final answer
    x = 66,084.66

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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.