Home / 85,575.69-128,363.40-23,246.19

Finding the Fourth Proportional to 85,575.69, 128,363.40 and 23,246.19

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Solution

The fourth proportional to 85,575.69, 128,363.40 and 23,246.19 is: 34,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,575.69 : 128,363.40 = 23,246.19 : x
  2. Step 2: Convert to fraction form
    85,575.69/128,363.40 = 23,246.19/x
  3. Step 3: Cross multiply
    85,575.69x = 128,363.40 × 23,246.19
  4. Step 4: Simplify right side
    85,575.69x = 2,983,959,985.45
  5. Step 5: Solve for x
    x = 2,983,959,985.45/85,575.69
  6. Step 6: Final answer
    x = 34,869.25

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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.