Home / 75,130.24-103,681.20-43,293.76

Finding the Fourth Proportional to 75,130.24, 103,681.20 and 43,293.76

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Solution

The fourth proportional to 75,130.24, 103,681.20 and 43,293.76 is: 59,746.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,130.24 : 103,681.20 = 43,293.76 : x
  2. Step 2: Convert to fraction form
    75,130.24/103,681.20 = 43,293.76/x
  3. Step 3: Cross multiply
    75,130.24x = 103,681.20 × 43,293.76
  4. Step 4: Simplify right side
    75,130.24x = 4,488,748,989.31
  5. Step 5: Solve for x
    x = 4,488,748,989.31/75,130.24
  6. Step 6: Final answer
    x = 59,746.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.