Home / 55,912.02-77,158.35-30,760.98

Finding the Fourth Proportional to 55,912.02, 77,158.35 and 30,760.98

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Solution

The fourth proportional to 55,912.02, 77,158.35 and 30,760.98 is: 42,450.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,912.02 : 77,158.35 = 30,760.98 : x
  2. Step 2: Convert to fraction form
    55,912.02/77,158.35 = 30,760.98/x
  3. Step 3: Cross multiply
    55,912.02x = 77,158.35 × 30,760.98
  4. Step 4: Simplify right side
    55,912.02x = 2,373,466,461.18
  5. Step 5: Solve for x
    x = 2,373,466,461.18/55,912.02
  6. Step 6: Final answer
    x = 42,450.02

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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.