Home / 70,641.18-97,485.12-38,810.70

Finding the Fourth Proportional to 70,641.18, 97,485.12 and 38,810.70

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Solution

The fourth proportional to 70,641.18, 97,485.12 and 38,810.70 is: 53,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.18 : 97,485.12 = 38,810.70 : x
  2. Step 2: Convert to fraction form
    70,641.18/97,485.12 = 38,810.70/x
  3. Step 3: Cross multiply
    70,641.18x = 97,485.12 × 38,810.70
  4. Step 4: Simplify right side
    70,641.18x = 3,783,465,746.78
  5. Step 5: Solve for x
    x = 3,783,465,746.78/70,641.18
  6. Step 6: Final answer
    x = 53,558.93

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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.