Home / 89,688.48-134,440.40-39,792.07

Finding the Fourth Proportional to 89,688.48, 134,440.40 and 39,792.07

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Solution

The fourth proportional to 89,688.48, 134,440.40 and 39,792.07 is: 59,647.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,688.48 : 134,440.40 = 39,792.07 : x
  2. Step 2: Convert to fraction form
    89,688.48/134,440.40 = 39,792.07/x
  3. Step 3: Cross multiply
    89,688.48x = 134,440.40 × 39,792.07
  4. Step 4: Simplify right side
    89,688.48x = 5,349,661,608.67
  5. Step 5: Solve for x
    x = 5,349,661,608.67/89,688.48
  6. Step 6: Final answer
    x = 59,647.15

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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.