Home / 98,870.34-136,440.38-53,547.29

Finding the Fourth Proportional to 98,870.34, 136,440.38 and 53,547.29

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Solution

The fourth proportional to 98,870.34, 136,440.38 and 53,547.29 is: 73,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,870.34 : 136,440.38 = 53,547.29 : x
  2. Step 2: Convert to fraction form
    98,870.34/136,440.38 = 53,547.29/x
  3. Step 3: Cross multiply
    98,870.34x = 136,440.38 × 53,547.29
  4. Step 4: Simplify right side
    98,870.34x = 7,306,012,047.24
  5. Step 5: Solve for x
    x = 7,306,012,047.24/98,870.34
  6. Step 6: Final answer
    x = 73,894.88

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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.