Home / 67,328.30-92,878.86-51,385.08

Finding the Fourth Proportional to 67,328.30, 92,878.86 and 51,385.08

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Solution

The fourth proportional to 67,328.30, 92,878.86 and 51,385.08 is: 70,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,328.30 : 92,878.86 = 51,385.08 : x
  2. Step 2: Convert to fraction form
    67,328.30/92,878.86 = 51,385.08/x
  3. Step 3: Cross multiply
    67,328.30x = 92,878.86 × 51,385.08
  4. Step 4: Simplify right side
    67,328.30x = 4,772,587,651.41
  5. Step 5: Solve for x
    x = 4,772,587,651.41/67,328.30
  6. Step 6: Final answer
    x = 70,885.31

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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.