Home / 72,064,985.72-99,449,776.15-39,025,291.79

Finding the Fourth Proportional to 72,064,985.72, 99,449,776.15 and 39,025,291.79

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Solution

The fourth proportional to 72,064,985.72, 99,449,776.15 and 39,025,291.79 is: 53,854,954.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,064,985.72 : 99,449,776.15 = 39,025,291.79 : x
  2. Step 2: Convert to fraction form
    72,064,985.72/99,449,776.15 = 39,025,291.79/x
  3. Step 3: Cross multiply
    72,064,985.72x = 99,449,776.15 × 39,025,291.79
  4. Step 4: Simplify right side
    72,064,985.72x = 3,881,056,532,854,993.50
  5. Step 5: Solve for x
    x = 3,881,056,532,854,993.50/72,064,985.72
  6. Step 6: Final answer
    x = 53,854,954.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.