Home / 85,510.35-128,196.36-35,627.97

Finding the Fourth Proportional to 85,510.35, 128,196.36 and 35,627.97

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Solution

The fourth proportional to 85,510.35, 128,196.36 and 35,627.97 is: 53,413.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,510.35 : 128,196.36 = 35,627.97 : x
  2. Step 2: Convert to fraction form
    85,510.35/128,196.36 = 35,627.97/x
  3. Step 3: Cross multiply
    85,510.35x = 128,196.36 × 35,627.97
  4. Step 4: Simplify right side
    85,510.35x = 4,567,376,068.19
  5. Step 5: Solve for x
    x = 4,567,376,068.19/85,510.35
  6. Step 6: Final answer
    x = 53,413.14

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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.