Home / 85,614.02-128,333.55-29,437.28

Finding the Fourth Proportional to 85,614.02, 128,333.55 and 29,437.28

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Solution

The fourth proportional to 85,614.02, 128,333.55 and 29,437.28 is: 44,125.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,614.02 : 128,333.55 = 29,437.28 : x
  2. Step 2: Convert to fraction form
    85,614.02/128,333.55 = 29,437.28/x
  3. Step 3: Cross multiply
    85,614.02x = 128,333.55 × 29,437.28
  4. Step 4: Simplify right side
    85,614.02x = 3,777,790,644.74
  5. Step 5: Solve for x
    x = 3,777,790,644.74/85,614.02
  6. Step 6: Final answer
    x = 44,125.84

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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.