Home / 85,547.36-128,342.88-35,610.86

Finding the Fourth Proportional to 85,547.36, 128,342.88 and 35,610.86

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Solution

The fourth proportional to 85,547.36, 128,342.88 and 35,610.86 is: 53,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547.36 : 128,342.88 = 35,610.86 : x
  2. Step 2: Convert to fraction form
    85,547.36/128,342.88 = 35,610.86/x
  3. Step 3: Cross multiply
    85,547.36x = 128,342.88 × 35,610.86
  4. Step 4: Simplify right side
    85,547.36x = 4,570,399,689.96
  5. Step 5: Solve for x
    x = 4,570,399,689.96/85,547.36
  6. Step 6: Final answer
    x = 53,425.38

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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.