Home / 85,507.02-128,248.52-29,346.21

Finding the Fourth Proportional to 85,507.02, 128,248.52 and 29,346.21

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Solution

The fourth proportional to 85,507.02, 128,248.52 and 29,346.21 is: 44,015.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,507.02 : 128,248.52 = 29,346.21 : x
  2. Step 2: Convert to fraction form
    85,507.02/128,248.52 = 29,346.21/x
  3. Step 3: Cross multiply
    85,507.02x = 128,248.52 × 29,346.21
  4. Step 4: Simplify right side
    85,507.02x = 3,763,607,853.38
  5. Step 5: Solve for x
    x = 3,763,607,853.38/85,507.02
  6. Step 6: Final answer
    x = 44,015.19

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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.