Home / 42,952.80-64,429.20-25,413.60

Finding the Fourth Proportional to 42,952.80, 64,429.20 and 25,413.60

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Solution

The fourth proportional to 42,952.80, 64,429.20 and 25,413.60 is: 38,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,952.80 : 64,429.20 = 25,413.60 : x
  2. Step 2: Convert to fraction form
    42,952.80/64,429.20 = 25,413.60/x
  3. Step 3: Cross multiply
    42,952.80x = 64,429.20 × 25,413.60
  4. Step 4: Simplify right side
    42,952.80x = 1,637,377,917.12
  5. Step 5: Solve for x
    x = 1,637,377,917.12/42,952.80
  6. Step 6: Final answer
    x = 38,120.40

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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.