Home / 86,172.24-118,915.58-47,931.66

Finding the Fourth Proportional to 86,172.24, 118,915.58 and 47,931.66

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Solution

The fourth proportional to 86,172.24, 118,915.58 and 47,931.66 is: 66,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,172.24 : 118,915.58 = 47,931.66 : x
  2. Step 2: Convert to fraction form
    86,172.24/118,915.58 = 47,931.66/x
  3. Step 3: Cross multiply
    86,172.24x = 118,915.58 × 47,931.66
  4. Step 4: Simplify right side
    86,172.24x = 5,699,821,149.26
  5. Step 5: Solve for x
    x = 5,699,821,149.26/86,172.24
  6. Step 6: Final answer
    x = 66,144.52

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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.