Home / 85,612.77-128,386.08-29,442.24

Finding the Fourth Proportional to 85,612.77, 128,386.08 and 29,442.24

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Solution

The fourth proportional to 85,612.77, 128,386.08 and 29,442.24 is: 44,151.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,612.77 : 128,386.08 = 29,442.24 : x
  2. Step 2: Convert to fraction form
    85,612.77/128,386.08 = 29,442.24/x
  3. Step 3: Cross multiply
    85,612.77x = 128,386.08 × 29,442.24
  4. Step 4: Simplify right side
    85,612.77x = 3,779,973,780.02
  5. Step 5: Solve for x
    x = 3,779,973,780.02/85,612.77
  6. Step 6: Final answer
    x = 44,151.99

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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.