Home / 70,346.40-97,087.27-40,124.78

Finding the Fourth Proportional to 70,346.40, 97,087.27 and 40,124.78

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Solution

The fourth proportional to 70,346.40, 97,087.27 and 40,124.78 is: 55,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,346.40 : 97,087.27 = 40,124.78 : x
  2. Step 2: Convert to fraction form
    70,346.40/97,087.27 = 40,124.78/x
  3. Step 3: Cross multiply
    70,346.40x = 97,087.27 × 40,124.78
  4. Step 4: Simplify right side
    70,346.40x = 3,895,605,349.55
  5. Step 5: Solve for x
    x = 3,895,605,349.55/70,346.40
  6. Step 6: Final answer
    x = 55,377.47

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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.