Home / 98,485.47-147,706.61-28,349.55

Finding the Fourth Proportional to 98,485.47, 147,706.61 and 28,349.55

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Solution

The fourth proportional to 98,485.47, 147,706.61 and 28,349.55 is: 42,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,485.47 : 147,706.61 = 28,349.55 : x
  2. Step 2: Convert to fraction form
    98,485.47/147,706.61 = 28,349.55/x
  3. Step 3: Cross multiply
    98,485.47x = 147,706.61 × 28,349.55
  4. Step 4: Simplify right side
    98,485.47x = 4,187,415,783.78
  5. Step 5: Solve for x
    x = 4,187,415,783.78/98,485.47
  6. Step 6: Final answer
    x = 42,518.11

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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.