Home / 85,913.95-128,874.57-26,750.74

Finding the Fourth Proportional to 85,913.95, 128,874.57 and 26,750.74

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Solution

The fourth proportional to 85,913.95, 128,874.57 and 26,750.74 is: 40,127.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,913.95 : 128,874.57 = 26,750.74 : x
  2. Step 2: Convert to fraction form
    85,913.95/128,874.57 = 26,750.74/x
  3. Step 3: Cross multiply
    85,913.95x = 128,874.57 × 26,750.74
  4. Step 4: Simplify right side
    85,913.95x = 3,447,490,114.68
  5. Step 5: Solve for x
    x = 3,447,490,114.68/85,913.95
  6. Step 6: Final answer
    x = 40,127.24

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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.