Home / 85,148.88-117,509.10-47,423.13

Finding the Fourth Proportional to 85,148.88, 117,509.10 and 47,423.13

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Solution

The fourth proportional to 85,148.88, 117,509.10 and 47,423.13 is: 65,445.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,148.88 : 117,509.10 = 47,423.13 : x
  2. Step 2: Convert to fraction form
    85,148.88/117,509.10 = 47,423.13/x
  3. Step 3: Cross multiply
    85,148.88x = 117,509.10 × 47,423.13
  4. Step 4: Simplify right side
    85,148.88x = 5,572,648,500.82
  5. Step 5: Solve for x
    x = 5,572,648,500.82/85,148.88
  6. Step 6: Final answer
    x = 65,445.94

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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.