Home / 70,423.18-105,633.74-17,115.55

Finding the Fourth Proportional to 70,423.18, 105,633.74 and 17,115.55

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Solution

The fourth proportional to 70,423.18, 105,633.74 and 17,115.55 is: 25,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,423.18 : 105,633.74 = 17,115.55 : x
  2. Step 2: Convert to fraction form
    70,423.18/105,633.74 = 17,115.55/x
  3. Step 3: Cross multiply
    70,423.18x = 105,633.74 × 17,115.55
  4. Step 4: Simplify right side
    70,423.18x = 1,807,979,030.49
  5. Step 5: Solve for x
    x = 1,807,979,030.49/70,423.18
  6. Step 6: Final answer
    x = 25,673.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.