Home / 70,859.50-97,777.60-40,643.26

Finding the Fourth Proportional to 70,859.50, 97,777.60 and 40,643.26

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Solution

The fourth proportional to 70,859.50, 97,777.60 and 40,643.26 is: 56,082.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,859.50 : 97,777.60 = 40,643.26 : x
  2. Step 2: Convert to fraction form
    70,859.50/97,777.60 = 40,643.26/x
  3. Step 3: Cross multiply
    70,859.50x = 97,777.60 × 40,643.26
  4. Step 4: Simplify right side
    70,859.50x = 3,974,000,418.98
  5. Step 5: Solve for x
    x = 3,974,000,418.98/70,859.50
  6. Step 6: Final answer
    x = 56,082.82

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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.