Home / 75,783.40-104,576.10-42,248.68

Finding the Fourth Proportional to 75,783.40, 104,576.10 and 42,248.68

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Solution

The fourth proportional to 75,783.40, 104,576.10 and 42,248.68 is: 58,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,783.40 : 104,576.10 = 42,248.68 : x
  2. Step 2: Convert to fraction form
    75,783.40/104,576.10 = 42,248.68/x
  3. Step 3: Cross multiply
    75,783.40x = 104,576.10 × 42,248.68
  4. Step 4: Simplify right side
    75,783.40x = 4,418,202,184.55
  5. Step 5: Solve for x
    x = 4,418,202,184.55/75,783.40
  6. Step 6: Final answer
    x = 58,300.40

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1.5x scale

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.