Home / 66,242.49-99,368.36-21,900.45

Finding the Fourth Proportional to 66,242.49, 99,368.36 and 21,900.45

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Solution

The fourth proportional to 66,242.49, 99,368.36 and 21,900.45 is: 32,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,242.49 : 99,368.36 = 21,900.45 : x
  2. Step 2: Convert to fraction form
    66,242.49/99,368.36 = 21,900.45/x
  3. Step 3: Cross multiply
    66,242.49x = 99,368.36 × 21,900.45
  4. Step 4: Simplify right side
    66,242.49x = 2,176,211,799.76
  5. Step 5: Solve for x
    x = 2,176,211,799.76/66,242.49
  6. Step 6: Final answer
    x = 32,852.20

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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.