Home / 85,612.01-128,437.45-46,168.25

Finding the Fourth Proportional to 85,612.01, 128,437.45 and 46,168.25

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Solution

The fourth proportional to 85,612.01, 128,437.45 and 46,168.25 is: 69,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,612.01 : 128,437.45 = 46,168.25 : x
  2. Step 2: Convert to fraction form
    85,612.01/128,437.45 = 46,168.25/x
  3. Step 3: Cross multiply
    85,612.01x = 128,437.45 × 46,168.25
  4. Step 4: Simplify right side
    85,612.01x = 5,929,731,543.35
  5. Step 5: Solve for x
    x = 5,929,731,543.35/85,612.01
  6. Step 6: Final answer
    x = 69,262.85

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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.