Home / 85,763.49-118,411.37-53,547.15

Finding the Fourth Proportional to 85,763.49, 118,411.37 and 53,547.15

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Solution

The fourth proportional to 85,763.49, 118,411.37 and 53,547.15 is: 73,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,763.49 : 118,411.37 = 53,547.15 : x
  2. Step 2: Convert to fraction form
    85,763.49/118,411.37 = 53,547.15/x
  3. Step 3: Cross multiply
    85,763.49x = 118,411.37 × 53,547.15
  4. Step 4: Simplify right side
    85,763.49x = 6,340,591,768.20
  5. Step 5: Solve for x
    x = 6,340,591,768.20/85,763.49
  6. Step 6: Final answer
    x = 73,931.13

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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.