Home / 66,130.32-91,210.53-43,165.20

Finding the Fourth Proportional to 66,130.32, 91,210.53 and 43,165.20

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Solution

The fourth proportional to 66,130.32, 91,210.53 and 43,165.20 is: 59,535.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,130.32 : 91,210.53 = 43,165.20 : x
  2. Step 2: Convert to fraction form
    66,130.32/91,210.53 = 43,165.20/x
  3. Step 3: Cross multiply
    66,130.32x = 91,210.53 × 43,165.20
  4. Step 4: Simplify right side
    66,130.32x = 3,937,120,769.56
  5. Step 5: Solve for x
    x = 3,937,120,769.56/66,130.32
  6. Step 6: Final answer
    x = 59,535.79

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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.