Home / 81,117.62-111,931.24-45,303.06

Finding the Fourth Proportional to 81,117.62, 111,931.24 and 45,303.06

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Solution

The fourth proportional to 81,117.62, 111,931.24 and 45,303.06 is: 62,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,117.62 : 111,931.24 = 45,303.06 : x
  2. Step 2: Convert to fraction form
    81,117.62/111,931.24 = 45,303.06/x
  3. Step 3: Cross multiply
    81,117.62x = 111,931.24 × 45,303.06
  4. Step 4: Simplify right side
    81,117.62x = 5,070,827,681.59
  5. Step 5: Solve for x
    x = 5,070,827,681.59/81,117.62
  6. Step 6: Final answer
    x = 62,512.04

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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.