Home / 76,562.64-105,643.60-42,570.16

Finding the Fourth Proportional to 76,562.64, 105,643.60 and 42,570.16

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Solution

The fourth proportional to 76,562.64, 105,643.60 and 42,570.16 is: 58,739.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,562.64 : 105,643.60 = 42,570.16 : x
  2. Step 2: Convert to fraction form
    76,562.64/105,643.60 = 42,570.16/x
  3. Step 3: Cross multiply
    76,562.64x = 105,643.60 × 42,570.16
  4. Step 4: Simplify right side
    76,562.64x = 4,497,264,954.98
  5. Step 5: Solve for x
    x = 4,497,264,954.98/76,562.64
  6. Step 6: Final answer
    x = 58,739.68

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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.