Home / 45,740.16-63,120.96-28,986.88

Finding the Fourth Proportional to 45,740.16, 63,120.96 and 28,986.88

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Solution

The fourth proportional to 45,740.16, 63,120.96 and 28,986.88 is: 40,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,740.16 : 63,120.96 = 28,986.88 : x
  2. Step 2: Convert to fraction form
    45,740.16/63,120.96 = 28,986.88/x
  3. Step 3: Cross multiply
    45,740.16x = 63,120.96 × 28,986.88
  4. Step 4: Simplify right side
    45,740.16x = 1,829,679,693.00
  5. Step 5: Solve for x
    x = 1,829,679,693.00/45,740.16
  6. Step 6: Final answer
    x = 40,001.60

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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.