Home / 67,689.08-93,420.72-39,410.36

Finding the Fourth Proportional to 67,689.08, 93,420.72 and 39,410.36

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Solution

The fourth proportional to 67,689.08, 93,420.72 and 39,410.36 is: 54,392.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,689.08 : 93,420.72 = 39,410.36 : x
  2. Step 2: Convert to fraction form
    67,689.08/93,420.72 = 39,410.36/x
  3. Step 3: Cross multiply
    67,689.08x = 93,420.72 × 39,410.36
  4. Step 4: Simplify right side
    67,689.08x = 3,681,744,206.66
  5. Step 5: Solve for x
    x = 3,681,744,206.66/67,689.08
  6. Step 6: Final answer
    x = 54,392.00

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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.