Home / 98,784.42-136,319.85-56,342.04

Finding the Fourth Proportional to 98,784.42, 136,319.85 and 56,342.04

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Solution

The fourth proportional to 98,784.42, 136,319.85 and 56,342.04 is: 77,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,784.42 : 136,319.85 = 56,342.04 : x
  2. Step 2: Convert to fraction form
    98,784.42/136,319.85 = 56,342.04/x
  3. Step 3: Cross multiply
    98,784.42x = 136,319.85 × 56,342.04
  4. Step 4: Simplify right side
    98,784.42x = 7,680,538,441.49
  5. Step 5: Solve for x
    x = 7,680,538,441.49/98,784.42
  6. Step 6: Final answer
    x = 77,750.50

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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.