Home / 66,303.18-91,501.37-40,810.72

Finding the Fourth Proportional to 66,303.18, 91,501.37 and 40,810.72

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Solution

The fourth proportional to 66,303.18, 91,501.37 and 40,810.72 is: 56,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,303.18 : 91,501.37 = 40,810.72 : x
  2. Step 2: Convert to fraction form
    66,303.18/91,501.37 = 40,810.72/x
  3. Step 3: Cross multiply
    66,303.18x = 91,501.37 × 40,810.72
  4. Step 4: Simplify right side
    66,303.18x = 3,734,236,790.69
  5. Step 5: Solve for x
    x = 3,734,236,790.69/66,303.18
  6. Step 6: Final answer
    x = 56,320.63

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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.