Home / 98,427.12-135,829.80-53,715.12

Finding the Fourth Proportional to 98,427.12, 135,829.80 and 53,715.12

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Solution

The fourth proportional to 98,427.12, 135,829.80 and 53,715.12 is: 74,127.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,427.12 : 135,829.80 = 53,715.12 : x
  2. Step 2: Convert to fraction form
    98,427.12/135,829.80 = 53,715.12/x
  3. Step 3: Cross multiply
    98,427.12x = 135,829.80 × 53,715.12
  4. Step 4: Simplify right side
    98,427.12x = 7,296,114,006.58
  5. Step 5: Solve for x
    x = 7,296,114,006.58/98,427.12
  6. Step 6: Final answer
    x = 74,127.07

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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.