Home / 70,513.09-105,670.18-38,937.36

Finding the Fourth Proportional to 70,513.09, 105,670.18 and 38,937.36

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Solution

The fourth proportional to 70,513.09, 105,670.18 and 38,937.36 is: 58,351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,513.09 : 105,670.18 = 38,937.36 : x
  2. Step 2: Convert to fraction form
    70,513.09/105,670.18 = 38,937.36/x
  3. Step 3: Cross multiply
    70,513.09x = 105,670.18 × 38,937.36
  4. Step 4: Simplify right side
    70,513.09x = 4,114,518,413.91
  5. Step 5: Solve for x
    x = 4,114,518,413.91/70,513.09
  6. Step 6: Final answer
    x = 58,351.13

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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.