Home / 77,140.56-106,434.48-45,303.24

Finding the Fourth Proportional to 77,140.56, 106,434.48 and 45,303.24

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Solution

The fourth proportional to 77,140.56, 106,434.48 and 45,303.24 is: 62,507.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,140.56 : 106,434.48 = 45,303.24 : x
  2. Step 2: Convert to fraction form
    77,140.56/106,434.48 = 45,303.24/x
  3. Step 3: Cross multiply
    77,140.56x = 106,434.48 × 45,303.24
  4. Step 4: Simplify right side
    77,140.56x = 4,821,826,791.72
  5. Step 5: Solve for x
    x = 4,821,826,791.72/77,140.56
  6. Step 6: Final answer
    x = 62,507.02

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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.