Home / 66,365.20-99,547.80-17,117.20

Finding the Fourth Proportional to 66,365.20, 99,547.80 and 17,117.20

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Solution

The fourth proportional to 66,365.20, 99,547.80 and 17,117.20 is: 25,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,365.20 : 99,547.80 = 17,117.20 : x
  2. Step 2: Convert to fraction form
    66,365.20/99,547.80 = 17,117.20/x
  3. Step 3: Cross multiply
    66,365.20x = 99,547.80 × 17,117.20
  4. Step 4: Simplify right side
    66,365.20x = 1,703,979,602.16
  5. Step 5: Solve for x
    x = 1,703,979,602.16/66,365.20
  6. Step 6: Final answer
    x = 25,675.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.