Home / 87,746.65-121,090.39-47,460.42

Finding the Fourth Proportional to 87,746.65, 121,090.39 and 47,460.42

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Solution

The fourth proportional to 87,746.65, 121,090.39 and 47,460.42 is: 65,495.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,746.65 : 121,090.39 = 47,460.42 : x
  2. Step 2: Convert to fraction form
    87,746.65/121,090.39 = 47,460.42/x
  3. Step 3: Cross multiply
    87,746.65x = 121,090.39 × 47,460.42
  4. Step 4: Simplify right side
    87,746.65x = 5,747,000,915.68
  5. Step 5: Solve for x
    x = 5,747,000,915.68/87,746.65
  6. Step 6: Final answer
    x = 65,495.39

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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.