Home / 71,700.19-98,970.86-43,405.88

Finding the Fourth Proportional to 71,700.19, 98,970.86 and 43,405.88

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Solution

The fourth proportional to 71,700.19, 98,970.86 and 43,405.88 is: 59,915.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,700.19 : 98,970.86 = 43,405.88 : x
  2. Step 2: Convert to fraction form
    71,700.19/98,970.86 = 43,405.88/x
  3. Step 3: Cross multiply
    71,700.19x = 98,970.86 × 43,405.88
  4. Step 4: Simplify right side
    71,700.19x = 4,295,916,886.32
  5. Step 5: Solve for x
    x = 4,295,916,886.32/71,700.19
  6. Step 6: Final answer
    x = 59,915.00

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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.