Home / 77,342.55-106,730.94-45,075.12

Finding the Fourth Proportional to 77,342.55, 106,730.94 and 45,075.12

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Solution

The fourth proportional to 77,342.55, 106,730.94 and 45,075.12 is: 62,202.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,342.55 : 106,730.94 = 45,075.12 : x
  2. Step 2: Convert to fraction form
    77,342.55/106,730.94 = 45,075.12/x
  3. Step 3: Cross multiply
    77,342.55x = 106,730.94 × 45,075.12
  4. Step 4: Simplify right side
    77,342.55x = 4,810,909,928.21
  5. Step 5: Solve for x
    x = 4,810,909,928.21/77,342.55
  6. Step 6: Final answer
    x = 62,202.63

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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.