Home / 85,923.50-118,574.16-47,688.81

Finding the Fourth Proportional to 85,923.50, 118,574.16 and 47,688.81

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Solution

The fourth proportional to 85,923.50, 118,574.16 and 47,688.81 is: 65,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,923.50 : 118,574.16 = 47,688.81 : x
  2. Step 2: Convert to fraction form
    85,923.50/118,574.16 = 47,688.81/x
  3. Step 3: Cross multiply
    85,923.50x = 118,574.16 × 47,688.81
  4. Step 4: Simplify right side
    85,923.50x = 5,654,660,587.15
  5. Step 5: Solve for x
    x = 5,654,660,587.15/85,923.50
  6. Step 6: Final answer
    x = 65,810.41

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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.