Home / 77,459.32-116,190.20-30,077.16

Finding the Fourth Proportional to 77,459.32, 116,190.20 and 30,077.16

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Solution

The fourth proportional to 77,459.32, 116,190.20 and 30,077.16 is: 45,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,459.32 : 116,190.20 = 30,077.16 : x
  2. Step 2: Convert to fraction form
    77,459.32/116,190.20 = 30,077.16/x
  3. Step 3: Cross multiply
    77,459.32x = 116,190.20 × 30,077.16
  4. Step 4: Simplify right side
    77,459.32x = 3,494,671,235.83
  5. Step 5: Solve for x
    x = 3,494,671,235.83/77,459.32
  6. Step 6: Final answer
    x = 45,116.21

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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.