Home / 72,283.98-99,752.40-40,455.84

Finding the Fourth Proportional to 72,283.98, 99,752.40 and 40,455.84

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Solution

The fourth proportional to 72,283.98, 99,752.40 and 40,455.84 is: 55,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,283.98 : 99,752.40 = 40,455.84 : x
  2. Step 2: Convert to fraction form
    72,283.98/99,752.40 = 40,455.84/x
  3. Step 3: Cross multiply
    72,283.98x = 99,752.40 × 40,455.84
  4. Step 4: Simplify right side
    72,283.98x = 4,035,567,134.02
  5. Step 5: Solve for x
    x = 4,035,567,134.02/72,283.98
  6. Step 6: Final answer
    x = 55,829.34

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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.