Home / 85,634.02-128,463.29-26,474.27

Finding the Fourth Proportional to 85,634.02, 128,463.29 and 26,474.27

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Solution

The fourth proportional to 85,634.02, 128,463.29 and 26,474.27 is: 39,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,634.02 : 128,463.29 = 26,474.27 : x
  2. Step 2: Convert to fraction form
    85,634.02/128,463.29 = 26,474.27/x
  3. Step 3: Cross multiply
    85,634.02x = 128,463.29 × 26,474.27
  4. Step 4: Simplify right side
    85,634.02x = 3,400,971,692.18
  5. Step 5: Solve for x
    x = 3,400,971,692.18/85,634.02
  6. Step 6: Final answer
    x = 39,715.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.