Home / 85,574.07-128,416.32-46,158.66

Finding the Fourth Proportional to 85,574.07, 128,416.32 and 46,158.66

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Solution

The fourth proportional to 85,574.07, 128,416.32 and 46,158.66 is: 69,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,574.07 : 128,416.32 = 46,158.66 : x
  2. Step 2: Convert to fraction form
    85,574.07/128,416.32 = 46,158.66/x
  3. Step 3: Cross multiply
    85,574.07x = 128,416.32 × 46,158.66
  4. Step 4: Simplify right side
    85,574.07x = 5,927,525,253.33
  5. Step 5: Solve for x
    x = 5,927,525,253.33/85,574.07
  6. Step 6: Final answer
    x = 69,267.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.