Home / 85,690.17-128,533.91-23,360.67

Finding the Fourth Proportional to 85,690.17, 128,533.91 and 23,360.67

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Solution

The fourth proportional to 85,690.17, 128,533.91 and 23,360.67 is: 35,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,690.17 : 128,533.91 = 23,360.67 : x
  2. Step 2: Convert to fraction form
    85,690.17/128,533.91 = 23,360.67/x
  3. Step 3: Cross multiply
    85,690.17x = 128,533.91 × 23,360.67
  4. Step 4: Simplify right side
    85,690.17x = 3,002,638,138.52
  5. Step 5: Solve for x
    x = 3,002,638,138.52/85,690.17
  6. Step 6: Final answer
    x = 35,040.64

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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.