Home / 70,178.68-105,083.02-42,031.99

Finding the Fourth Proportional to 70,178.68, 105,083.02 and 42,031.99

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Solution

The fourth proportional to 70,178.68, 105,083.02 and 42,031.99 is: 62,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,178.68 : 105,083.02 = 42,031.99 : x
  2. Step 2: Convert to fraction form
    70,178.68/105,083.02 = 42,031.99/x
  3. Step 3: Cross multiply
    70,178.68x = 105,083.02 × 42,031.99
  4. Step 4: Simplify right side
    70,178.68x = 4,416,848,445.81
  5. Step 5: Solve for x
    x = 4,416,848,445.81/70,178.68
  6. Step 6: Final answer
    x = 62,937.18

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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.