Home / 48,980.19-67,572.53-31,978.55

Finding the Fourth Proportional to 48,980.19, 67,572.53 and 31,978.55

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Solution

The fourth proportional to 48,980.19, 67,572.53 and 31,978.55 is: 44,117.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,980.19 : 67,572.53 = 31,978.55 : x
  2. Step 2: Convert to fraction form
    48,980.19/67,572.53 = 31,978.55/x
  3. Step 3: Cross multiply
    48,980.19x = 67,572.53 × 31,978.55
  4. Step 4: Simplify right side
    48,980.19x = 2,160,871,278.09
  5. Step 5: Solve for x
    x = 2,160,871,278.09/48,980.19
  6. Step 6: Final answer
    x = 44,117.25

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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.