Home / 85,543.96-128,307.68-26,363.74

Finding the Fourth Proportional to 85,543.96, 128,307.68 and 26,363.74

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Solution

The fourth proportional to 85,543.96, 128,307.68 and 26,363.74 is: 39,543.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,543.96 : 128,307.68 = 26,363.74 : x
  2. Step 2: Convert to fraction form
    85,543.96/128,307.68 = 26,363.74/x
  3. Step 3: Cross multiply
    85,543.96x = 128,307.68 × 26,363.74
  4. Step 4: Simplify right side
    85,543.96x = 3,382,670,315.52
  5. Step 5: Solve for x
    x = 3,382,670,315.52/85,543.96
  6. Step 6: Final answer
    x = 39,543.06

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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.