Home / 76,361.37-105,384.48-42,376.31

Finding the Fourth Proportional to 76,361.37, 105,384.48 and 42,376.31

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Solution

The fourth proportional to 76,361.37, 105,384.48 and 42,376.31 is: 58,482.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,361.37 : 105,384.48 = 42,376.31 : x
  2. Step 2: Convert to fraction form
    76,361.37/105,384.48 = 42,376.31/x
  3. Step 3: Cross multiply
    76,361.37x = 105,384.48 × 42,376.31
  4. Step 4: Simplify right side
    76,361.37x = 4,465,804,866.75
  5. Step 5: Solve for x
    x = 4,465,804,866.75/76,361.37
  6. Step 6: Final answer
    x = 58,482.51

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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.