Home / 71,962.02-99,307.40-40,130.96

Finding the Fourth Proportional to 71,962.02, 99,307.40 and 40,130.96

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Solution

The fourth proportional to 71,962.02, 99,307.40 and 40,130.96 is: 55,380.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,962.02 : 99,307.40 = 40,130.96 : x
  2. Step 2: Convert to fraction form
    71,962.02/99,307.40 = 40,130.96/x
  3. Step 3: Cross multiply
    71,962.02x = 99,307.40 × 40,130.96
  4. Step 4: Simplify right side
    71,962.02x = 3,985,300,599.91
  5. Step 5: Solve for x
    x = 3,985,300,599.91/71,962.02
  6. Step 6: Final answer
    x = 55,380.61

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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.