Home / 77,017.37-106,280.16-43,019.09

Finding the Fourth Proportional to 77,017.37, 106,280.16 and 43,019.09

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Solution

The fourth proportional to 77,017.37, 106,280.16 and 43,019.09 is: 59,364.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,017.37 : 106,280.16 = 43,019.09 : x
  2. Step 2: Convert to fraction form
    77,017.37/106,280.16 = 43,019.09/x
  3. Step 3: Cross multiply
    77,017.37x = 106,280.16 × 43,019.09
  4. Step 4: Simplify right side
    77,017.37x = 4,572,075,236.85
  5. Step 5: Solve for x
    x = 4,572,075,236.85/77,017.37
  6. Step 6: Final answer
    x = 59,364.21

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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.