Home / 66,430.07-99,645.47-19,683.35

Finding the Fourth Proportional to 66,430.07, 99,645.47 and 19,683.35

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Solution

The fourth proportional to 66,430.07, 99,645.47 and 19,683.35 is: 29,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430.07 : 99,645.47 = 19,683.35 : x
  2. Step 2: Convert to fraction form
    66,430.07/99,645.47 = 19,683.35/x
  3. Step 3: Cross multiply
    66,430.07x = 99,645.47 × 19,683.35
  4. Step 4: Simplify right side
    66,430.07x = 1,961,356,563.51
  5. Step 5: Solve for x
    x = 1,961,356,563.51/66,430.07
  6. Step 6: Final answer
    x = 29,525.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.