Home / 85,797.23-118,359.23-57,130.11

Finding the Fourth Proportional to 85,797.23, 118,359.23 and 57,130.11

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Solution

The fourth proportional to 85,797.23, 118,359.23 and 57,130.11 is: 78,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,797.23 : 118,359.23 = 57,130.11 : x
  2. Step 2: Convert to fraction form
    85,797.23/118,359.23 = 57,130.11/x
  3. Step 3: Cross multiply
    85,797.23x = 118,359.23 × 57,130.11
  4. Step 4: Simplify right side
    85,797.23x = 6,761,875,543.76
  5. Step 5: Solve for x
    x = 6,761,875,543.76/85,797.23
  6. Step 6: Final answer
    x = 78,812.29

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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.