Home / 90,708.96-136,064.81-31,546.67

Finding the Fourth Proportional to 90,708.96, 136,064.81 and 31,546.67

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Solution

The fourth proportional to 90,708.96, 136,064.81 and 31,546.67 is: 47,320.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,708.96 : 136,064.81 = 31,546.67 : x
  2. Step 2: Convert to fraction form
    90,708.96/136,064.81 = 31,546.67/x
  3. Step 3: Cross multiply
    90,708.96x = 136,064.81 × 31,546.67
  4. Step 4: Simplify right side
    90,708.96x = 4,292,391,058.23
  5. Step 5: Solve for x
    x = 4,292,391,058.23/90,708.96
  6. Step 6: Final answer
    x = 47,320.47

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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.