Home / 70,785.18-97,681.10-38,951.10

Finding the Fourth Proportional to 70,785.18, 97,681.10 and 38,951.10

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Solution

The fourth proportional to 70,785.18, 97,681.10 and 38,951.10 is: 53,751.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,785.18 : 97,681.10 = 38,951.10 : x
  2. Step 2: Convert to fraction form
    70,785.18/97,681.10 = 38,951.10/x
  3. Step 3: Cross multiply
    70,785.18x = 97,681.10 × 38,951.10
  4. Step 4: Simplify right side
    70,785.18x = 3,804,786,294.21
  5. Step 5: Solve for x
    x = 3,804,786,294.21/70,785.18
  6. Step 6: Final answer
    x = 53,751.17

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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.