Home / 70,436.04-105,747.90-40,875.09

Finding the Fourth Proportional to 70,436.04, 105,747.90 and 40,875.09

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Solution

The fourth proportional to 70,436.04, 105,747.90 and 40,875.09 is: 61,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,436.04 : 105,747.90 = 40,875.09 : x
  2. Step 2: Convert to fraction form
    70,436.04/105,747.90 = 40,875.09/x
  3. Step 3: Cross multiply
    70,436.04x = 105,747.90 × 40,875.09
  4. Step 4: Simplify right side
    70,436.04x = 4,322,454,929.81
  5. Step 5: Solve for x
    x = 4,322,454,929.81/70,436.04
  6. Step 6: Final answer
    x = 61,367.09

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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.