Home / 85,688.24-128,532.33-23,358.74

Finding the Fourth Proportional to 85,688.24, 128,532.33 and 23,358.74

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Solution

The fourth proportional to 85,688.24, 128,532.33 and 23,358.74 is: 35,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,688.24 : 128,532.33 = 23,358.74 : x
  2. Step 2: Convert to fraction form
    85,688.24/128,532.33 = 23,358.74/x
  3. Step 3: Cross multiply
    85,688.24x = 128,532.33 × 23,358.74
  4. Step 4: Simplify right side
    85,688.24x = 3,002,352,635.40
  5. Step 5: Solve for x
    x = 3,002,352,635.40/85,688.24
  6. Step 6: Final answer
    x = 35,038.10

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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.