Home / 101,772.02-140,462.21-56,464.60

Finding the Fourth Proportional to 101,772.02, 140,462.21 and 56,464.60

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Solution

The fourth proportional to 101,772.02, 140,462.21 and 56,464.60 is: 77,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,772.02 : 140,462.21 = 56,464.60 : x
  2. Step 2: Convert to fraction form
    101,772.02/140,462.21 = 56,464.60/x
  3. Step 3: Cross multiply
    101,772.02x = 140,462.21 × 56,464.60
  4. Step 4: Simplify right side
    101,772.02x = 7,931,142,502.77
  5. Step 5: Solve for x
    x = 7,931,142,502.77/101,772.02
  6. Step 6: Final answer
    x = 77,930.48

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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.