Home / 98,742.42-136,261.17-56,314.62

Finding the Fourth Proportional to 98,742.42, 136,261.17 and 56,314.62

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Solution

The fourth proportional to 98,742.42, 136,261.17 and 56,314.62 is: 77,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,742.42 : 136,261.17 = 56,314.62 : x
  2. Step 2: Convert to fraction form
    98,742.42/136,261.17 = 56,314.62/x
  3. Step 3: Cross multiply
    98,742.42x = 136,261.17 × 56,314.62
  4. Step 4: Simplify right side
    98,742.42x = 7,673,496,009.31
  5. Step 5: Solve for x
    x = 7,673,496,009.31/98,742.42
  6. Step 6: Final answer
    x = 77,712.25

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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.