Home / 70,372.08-97,124.81-40,158.68

Finding the Fourth Proportional to 70,372.08, 97,124.81 and 40,158.68

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Solution

The fourth proportional to 70,372.08, 97,124.81 and 40,158.68 is: 55,425.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,372.08 : 97,124.81 = 40,158.68 : x
  2. Step 2: Convert to fraction form
    70,372.08/97,124.81 = 40,158.68/x
  3. Step 3: Cross multiply
    70,372.08x = 97,124.81 × 40,158.68
  4. Step 4: Simplify right side
    70,372.08x = 3,900,403,478.43
  5. Step 5: Solve for x
    x = 3,900,403,478.43/70,372.08
  6. Step 6: Final answer
    x = 55,425.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.