Home / 74,313.60-111,457.56-21,009.36

Finding the Fourth Proportional to 74,313.60, 111,457.56 and 21,009.36

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Solution

The fourth proportional to 74,313.60, 111,457.56 and 21,009.36 is: 31,510.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,313.60 : 111,457.56 = 21,009.36 : x
  2. Step 2: Convert to fraction form
    74,313.60/111,457.56 = 21,009.36/x
  3. Step 3: Cross multiply
    74,313.60x = 111,457.56 × 21,009.36
  4. Step 4: Simplify right side
    74,313.60x = 2,341,652,002.76
  5. Step 5: Solve for x
    x = 2,341,652,002.76/74,313.60
  6. Step 6: Final answer
    x = 31,510.41

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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.