Home / 51,417.68-77,090.06-19,801.40

Finding the Fourth Proportional to 51,417.68, 77,090.06 and 19,801.40

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Solution

The fourth proportional to 51,417.68, 77,090.06 and 19,801.40 is: 29,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,417.68 : 77,090.06 = 19,801.40 : x
  2. Step 2: Convert to fraction form
    51,417.68/77,090.06 = 19,801.40/x
  3. Step 3: Cross multiply
    51,417.68x = 77,090.06 × 19,801.40
  4. Step 4: Simplify right side
    51,417.68x = 1,526,490,629.63
  5. Step 5: Solve for x
    x = 1,526,490,629.63/51,417.68
  6. Step 6: Final answer
    x = 29,688.05

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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.