Home / 85,015.10-127,413.30-51,699.80

Finding the Fourth Proportional to 85,015.10, 127,413.30 and 51,699.80

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Solution

The fourth proportional to 85,015.10, 127,413.30 and 51,699.80 is: 77,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,015.10 : 127,413.30 = 51,699.80 : x
  2. Step 2: Convert to fraction form
    85,015.10/127,413.30 = 51,699.80/x
  3. Step 3: Cross multiply
    85,015.10x = 127,413.30 × 51,699.80
  4. Step 4: Simplify right side
    85,015.10x = 6,587,242,127.34
  5. Step 5: Solve for x
    x = 6,587,242,127.34/85,015.10
  6. Step 6: Final answer
    x = 77,483.20

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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.