Home / 85,959.96-128,939.36-46,766.18

Finding the Fourth Proportional to 85,959.96, 128,939.36 and 46,766.18

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Solution

The fourth proportional to 85,959.96, 128,939.36 and 46,766.18 is: 70,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,959.96 : 128,939.36 = 46,766.18 : x
  2. Step 2: Convert to fraction form
    85,959.96/128,939.36 = 46,766.18/x
  3. Step 3: Cross multiply
    85,959.96x = 128,939.36 × 46,766.18
  4. Step 4: Simplify right side
    85,959.96x = 6,030,001,085.01
  5. Step 5: Solve for x
    x = 6,030,001,085.01/85,959.96
  6. Step 6: Final answer
    x = 70,148.95

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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.