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Finding the Fourth Proportional to 70,423.58, 105,569.22 and 23,643.65

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Solution

The fourth proportional to 70,423.58, 105,569.22 and 23,643.65 is: 35,443.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,423.58 : 105,569.22 = 23,643.65 : x
  2. Step 2: Convert to fraction form
    70,423.58/105,569.22 = 23,643.65/x
  3. Step 3: Cross multiply
    70,423.58x = 105,569.22 × 23,643.65
  4. Step 4: Simplify right side
    70,423.58x = 2,496,041,688.45
  5. Step 5: Solve for x
    x = 2,496,041,688.45/70,423.58
  6. Step 6: Final answer
    x = 35,443.27

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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.