Home / 85,547.24-128,337.94-26,380.69

Finding the Fourth Proportional to 85,547.24, 128,337.94 and 26,380.69

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Solution

The fourth proportional to 85,547.24, 128,337.94 and 26,380.69 is: 39,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547.24 : 128,337.94 = 26,380.69 : x
  2. Step 2: Convert to fraction form
    85,547.24/128,337.94 = 26,380.69/x
  3. Step 3: Cross multiply
    85,547.24x = 128,337.94 × 26,380.69
  4. Step 4: Simplify right side
    85,547.24x = 3,385,643,196.71
  5. Step 5: Solve for x
    x = 3,385,643,196.71/85,547.24
  6. Step 6: Final answer
    x = 39,576.30

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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.