Home / 53,999.39-74,521.19-30,130.67

Finding the Fourth Proportional to 53,999.39, 74,521.19 and 30,130.67

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Solution

The fourth proportional to 53,999.39, 74,521.19 and 30,130.67 is: 41,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,999.39 : 74,521.19 = 30,130.67 : x
  2. Step 2: Convert to fraction form
    53,999.39/74,521.19 = 30,130.67/x
  3. Step 3: Cross multiply
    53,999.39x = 74,521.19 × 30,130.67
  4. Step 4: Simplify right side
    53,999.39x = 2,245,372,860.64
  5. Step 5: Solve for x
    x = 2,245,372,860.64/53,999.39
  6. Step 6: Final answer
    x = 41,581.45

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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.