Home / 52,287.12-72,156-28,413.36

Finding the Fourth Proportional to 52,287.12, 72,156 and 28,413.36

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Solution

The fourth proportional to 52,287.12, 72,156 and 28,413.36 is: 39,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,287.12 : 72,156 = 28,413.36 : x
  2. Step 2: Convert to fraction form
    52,287.12/72,156 = 28,413.36/x
  3. Step 3: Cross multiply
    52,287.12x = 72,156 × 28,413.36
  4. Step 4: Simplify right side
    52,287.12x = 2,050,194,404.16
  5. Step 5: Solve for x
    x = 2,050,194,404.16/52,287.12
  6. Step 6: Final answer
    x = 39,210.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.