Home / 72,066.81-99,448.02-40,237.74

Finding the Fourth Proportional to 72,066.81, 99,448.02 and 40,237.74

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Solution

The fourth proportional to 72,066.81, 99,448.02 and 40,237.74 is: 55,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,066.81 : 99,448.02 = 40,237.74 : x
  2. Step 2: Convert to fraction form
    72,066.81/99,448.02 = 40,237.74/x
  3. Step 3: Cross multiply
    72,066.81x = 99,448.02 × 40,237.74
  4. Step 4: Simplify right side
    72,066.81x = 4,001,563,572.27
  5. Step 5: Solve for x
    x = 4,001,563,572.27/72,066.81
  6. Step 6: Final answer
    x = 55,525.75

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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.