Home / 99,455.42-137,255.02-57,014.66

Finding the Fourth Proportional to 99,455.42, 137,255.02 and 57,014.66

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Solution

The fourth proportional to 99,455.42, 137,255.02 and 57,014.66 is: 78,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,455.42 : 137,255.02 = 57,014.66 : x
  2. Step 2: Convert to fraction form
    99,455.42/137,255.02 = 57,014.66/x
  3. Step 3: Cross multiply
    99,455.42x = 137,255.02 × 57,014.66
  4. Step 4: Simplify right side
    99,455.42x = 7,825,547,469.78
  5. Step 5: Solve for x
    x = 7,825,547,469.78/99,455.42
  6. Step 6: Final answer
    x = 78,683.98

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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.