Home / 44,638.16-66,971.28-28,009.76

Finding the Fourth Proportional to 44,638.16, 66,971.28 and 28,009.76

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Solution

The fourth proportional to 44,638.16, 66,971.28 and 28,009.76 is: 42,023.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,638.16 : 66,971.28 = 28,009.76 : x
  2. Step 2: Convert to fraction form
    44,638.16/66,971.28 = 28,009.76/x
  3. Step 3: Cross multiply
    44,638.16x = 66,971.28 × 28,009.76
  4. Step 4: Simplify right side
    44,638.16x = 1,875,849,479.69
  5. Step 5: Solve for x
    x = 1,875,849,479.69/44,638.16
  6. Step 6: Final answer
    x = 42,023.45

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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.