Home / 85,547.12-118,055.78-47,309.23

Finding the Fourth Proportional to 85,547.12, 118,055.78 and 47,309.23

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Solution

The fourth proportional to 85,547.12, 118,055.78 and 47,309.23 is: 65,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547.12 : 118,055.78 = 47,309.23 : x
  2. Step 2: Convert to fraction form
    85,547.12/118,055.78 = 47,309.23/x
  3. Step 3: Cross multiply
    85,547.12x = 118,055.78 × 47,309.23
  4. Step 4: Simplify right side
    85,547.12x = 5,585,127,517.16
  5. Step 5: Solve for x
    x = 5,585,127,517.16/85,547.12
  6. Step 6: Final answer
    x = 65,287.15

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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.