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Finding the Fourth Proportional to 70,655.78, 97,509.53 and 40,450.88

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Solution

The fourth proportional to 70,655.78, 97,509.53 and 40,450.88 is: 55,824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,655.78 : 97,509.53 = 40,450.88 : x
  2. Step 2: Convert to fraction form
    70,655.78/97,509.53 = 40,450.88/x
  3. Step 3: Cross multiply
    70,655.78x = 97,509.53 × 40,450.88
  4. Step 4: Simplify right side
    70,655.78x = 3,944,346,296.89
  5. Step 5: Solve for x
    x = 3,944,346,296.89/70,655.78
  6. Step 6: Final answer
    x = 55,824.82

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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.