Home / 45,981.24-63,459.96-28,072.40

Finding the Fourth Proportional to 45,981.24, 63,459.96 and 28,072.40

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Solution

The fourth proportional to 45,981.24, 63,459.96 and 28,072.40 is: 38,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,981.24 : 63,459.96 = 28,072.40 : x
  2. Step 2: Convert to fraction form
    45,981.24/63,459.96 = 28,072.40/x
  3. Step 3: Cross multiply
    45,981.24x = 63,459.96 × 28,072.40
  4. Step 4: Simplify right side
    45,981.24x = 1,781,473,381.10
  5. Step 5: Solve for x
    x = 1,781,473,381.10/45,981.24
  6. Step 6: Final answer
    x = 38,743.48

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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.