Home / 70,638.24-97,480.98-38,807.76

Finding the Fourth Proportional to 70,638.24, 97,480.98 and 38,807.76

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Solution

The fourth proportional to 70,638.24, 97,480.98 and 38,807.76 is: 53,554.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,638.24 : 97,480.98 = 38,807.76 : x
  2. Step 2: Convert to fraction form
    70,638.24/97,480.98 = 38,807.76/x
  3. Step 3: Cross multiply
    70,638.24x = 97,480.98 × 38,807.76
  4. Step 4: Simplify right side
    70,638.24x = 3,783,018,476.40
  5. Step 5: Solve for x
    x = 3,783,018,476.40/70,638.24
  6. Step 6: Final answer
    x = 53,554.82

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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.