Home / 66,032.36-99,038.76-21,663.80

Finding the Fourth Proportional to 66,032.36, 99,038.76 and 21,663.80

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Solution

The fourth proportional to 66,032.36, 99,038.76 and 21,663.80 is: 32,492.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,032.36 : 99,038.76 = 21,663.80 : x
  2. Step 2: Convert to fraction form
    66,032.36/99,038.76 = 21,663.80/x
  3. Step 3: Cross multiply
    66,032.36x = 99,038.76 × 21,663.80
  4. Step 4: Simplify right side
    66,032.36x = 2,145,555,888.89
  5. Step 5: Solve for x
    x = 2,145,555,888.89/66,032.36
  6. Step 6: Final answer
    x = 32,492.49

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1.5x scale

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.