Home / 45,305.10-67,957.65-12,030.30

Finding the Fourth Proportional to 45,305.10, 67,957.65 and 12,030.30

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Solution

The fourth proportional to 45,305.10, 67,957.65 and 12,030.30 is: 18,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,305.10 : 67,957.65 = 12,030.30 : x
  2. Step 2: Convert to fraction form
    45,305.10/67,957.65 = 12,030.30/x
  3. Step 3: Cross multiply
    45,305.10x = 67,957.65 × 12,030.30
  4. Step 4: Simplify right side
    45,305.10x = 817,550,916.80
  5. Step 5: Solve for x
    x = 817,550,916.80/45,305.10
  6. Step 6: Final answer
    x = 18,045.45

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1.5x scale

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.