Home / 66,259.67-99,381.08-21,875.51

Finding the Fourth Proportional to 66,259.67, 99,381.08 and 21,875.51

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Solution

The fourth proportional to 66,259.67, 99,381.08 and 21,875.51 is: 32,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,259.67 : 99,381.08 = 21,875.51 : x
  2. Step 2: Convert to fraction form
    66,259.67/99,381.08 = 21,875.51/x
  3. Step 3: Cross multiply
    66,259.67x = 99,381.08 × 21,875.51
  4. Step 4: Simplify right side
    66,259.67x = 2,174,011,203.07
  5. Step 5: Solve for x
    x = 2,174,011,203.07/66,259.67
  6. Step 6: Final answer
    x = 32,810.48

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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.