Home / 74,207.79-111,312.90-21,620.16

Finding the Fourth Proportional to 74,207.79, 111,312.90 and 21,620.16

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Solution

The fourth proportional to 74,207.79, 111,312.90 and 21,620.16 is: 32,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,207.79 : 111,312.90 = 21,620.16 : x
  2. Step 2: Convert to fraction form
    74,207.79/111,312.90 = 21,620.16/x
  3. Step 3: Cross multiply
    74,207.79x = 111,312.90 × 21,620.16
  4. Step 4: Simplify right side
    74,207.79x = 2,406,602,708.06
  5. Step 5: Solve for x
    x = 2,406,602,708.06/74,207.79
  6. Step 6: Final answer
    x = 32,430.59

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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.