Home / 99,953.02-137,931.42-54,630.64

Finding the Fourth Proportional to 99,953.02, 137,931.42 and 54,630.64

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Solution

The fourth proportional to 99,953.02, 137,931.42 and 54,630.64 is: 75,388.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,953.02 : 137,931.42 = 54,630.64 : x
  2. Step 2: Convert to fraction form
    99,953.02/137,931.42 = 54,630.64/x
  3. Step 3: Cross multiply
    99,953.02x = 137,931.42 × 54,630.64
  4. Step 4: Simplify right side
    99,953.02x = 7,535,282,127.99
  5. Step 5: Solve for x
    x = 7,535,282,127.99/99,953.02
  6. Step 6: Final answer
    x = 75,388.24

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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.