Home / 98,870.86-136,441.09-53,547.80

Finding the Fourth Proportional to 98,870.86, 136,441.09 and 53,547.80

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Solution

The fourth proportional to 98,870.86, 136,441.09 and 53,547.80 is: 73,895.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,870.86 : 136,441.09 = 53,547.80 : x
  2. Step 2: Convert to fraction form
    98,870.86/136,441.09 = 53,547.80/x
  3. Step 3: Cross multiply
    98,870.86x = 136,441.09 × 53,547.80
  4. Step 4: Simplify right side
    98,870.86x = 7,306,120,199.10
  5. Step 5: Solve for x
    x = 7,306,120,199.10/98,870.86
  6. Step 6: Final answer
    x = 73,895.59

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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.