Home / 85,823.55-128,703.71-29,649.24

Finding the Fourth Proportional to 85,823.55, 128,703.71 and 29,649.24

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Solution

The fourth proportional to 85,823.55, 128,703.71 and 29,649.24 is: 44,462.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,823.55 : 128,703.71 = 29,649.24 : x
  2. Step 2: Convert to fraction form
    85,823.55/128,703.71 = 29,649.24/x
  3. Step 3: Cross multiply
    85,823.55x = 128,703.71 × 29,649.24
  4. Step 4: Simplify right side
    85,823.55x = 3,815,967,038.43
  5. Step 5: Solve for x
    x = 3,815,967,038.43/85,823.55
  6. Step 6: Final answer
    x = 44,462.94

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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.