Home / 98,870.84-136,441.07-53,547.79

Finding the Fourth Proportional to 98,870.84, 136,441.07 and 53,547.79

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Solution

The fourth proportional to 98,870.84, 136,441.07 and 53,547.79 is: 73,895.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,870.84 : 136,441.07 = 53,547.79 : x
  2. Step 2: Convert to fraction form
    98,870.84/136,441.07 = 53,547.79/x
  3. Step 3: Cross multiply
    98,870.84x = 136,441.07 × 53,547.79
  4. Step 4: Simplify right side
    98,870.84x = 7,306,117,081.53
  5. Step 5: Solve for x
    x = 7,306,117,081.53/98,870.84
  6. Step 6: Final answer
    x = 73,895.57

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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.