Home / 98,865.55-136,444.20-56,430.46

Finding the Fourth Proportional to 98,865.55, 136,444.20 and 56,430.46

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Solution

The fourth proportional to 98,865.55, 136,444.20 and 56,430.46 is: 77,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,865.55 : 136,444.20 = 56,430.46 : x
  2. Step 2: Convert to fraction form
    98,865.55/136,444.20 = 56,430.46/x
  3. Step 3: Cross multiply
    98,865.55x = 136,444.20 × 56,430.46
  4. Step 4: Simplify right side
    98,865.55x = 7,699,608,005.96
  5. Step 5: Solve for x
    x = 7,699,608,005.96/98,865.55
  6. Step 6: Final answer
    x = 77,879.59

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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.