Home / 70,412.08-105,482.02-39,152.56

Finding the Fourth Proportional to 70,412.08, 105,482.02 and 39,152.56

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Solution

The fourth proportional to 70,412.08, 105,482.02 and 39,152.56 is: 58,653.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,412.08 : 105,482.02 = 39,152.56 : x
  2. Step 2: Convert to fraction form
    70,412.08/105,482.02 = 39,152.56/x
  3. Step 3: Cross multiply
    70,412.08x = 105,482.02 × 39,152.56
  4. Step 4: Simplify right side
    70,412.08x = 4,129,891,116.97
  5. Step 5: Solve for x
    x = 4,129,891,116.97/70,412.08
  6. Step 6: Final answer
    x = 58,653.16

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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.