Home / 60,864.40-91,450.20-38,688.40

Finding the Fourth Proportional to 60,864.40, 91,450.20 and 38,688.40

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Solution

The fourth proportional to 60,864.40, 91,450.20 and 38,688.40 is: 58,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,864.40 : 91,450.20 = 38,688.40 : x
  2. Step 2: Convert to fraction form
    60,864.40/91,450.20 = 38,688.40/x
  3. Step 3: Cross multiply
    60,864.40x = 91,450.20 × 38,688.40
  4. Step 4: Simplify right side
    60,864.40x = 3,538,061,917.68
  5. Step 5: Solve for x
    x = 3,538,061,917.68/60,864.40
  6. Step 6: Final answer
    x = 58,130.24

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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.