Home / 70,145.04-105,237-39,002.16

Finding the Fourth Proportional to 70,145.04, 105,237 and 39,002.16

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Solution

The fourth proportional to 70,145.04, 105,237 and 39,002.16 is: 58,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,145.04 : 105,237 = 39,002.16 : x
  2. Step 2: Convert to fraction form
    70,145.04/105,237 = 39,002.16/x
  3. Step 3: Cross multiply
    70,145.04x = 105,237 × 39,002.16
  4. Step 4: Simplify right side
    70,145.04x = 4,104,470,311.92
  5. Step 5: Solve for x
    x = 4,104,470,311.92/70,145.04
  6. Step 6: Final answer
    x = 58,514.05

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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.