Home / 98,866.55-136,445.58-56,431.46

Finding the Fourth Proportional to 98,866.55, 136,445.58 and 56,431.46

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Solution

The fourth proportional to 98,866.55, 136,445.58 and 56,431.46 is: 77,880.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,866.55 : 136,445.58 = 56,431.46 : x
  2. Step 2: Convert to fraction form
    98,866.55/136,445.58 = 56,431.46/x
  3. Step 3: Cross multiply
    98,866.55x = 136,445.58 × 56,431.46
  4. Step 4: Simplify right side
    98,866.55x = 7,699,823,289.95
  5. Step 5: Solve for x
    x = 7,699,823,289.95/98,866.55
  6. Step 6: Final answer
    x = 77,880.97

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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.