Home / 98,509.96-135,988.50-62,749

Finding the Fourth Proportional to 98,509.96, 135,988.50 and 62,749

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Solution

The fourth proportional to 98,509.96, 135,988.50 and 62,749 is: 86,622.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,509.96 : 135,988.50 = 62,749 : x
  2. Step 2: Convert to fraction form
    98,509.96/135,988.50 = 62,749/x
  3. Step 3: Cross multiply
    98,509.96x = 135,988.50 × 62,749
  4. Step 4: Simplify right side
    98,509.96x = 8,533,142,386.50
  5. Step 5: Solve for x
    x = 8,533,142,386.50/98,509.96
  6. Step 6: Final answer
    x = 86,622.13

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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.