Home / 91,200.16-125,858.28-57,210.08

Finding the Fourth Proportional to 91,200.16, 125,858.28 and 57,210.08

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Solution

The fourth proportional to 91,200.16, 125,858.28 and 57,210.08 is: 78,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,200.16 : 125,858.28 = 57,210.08 : x
  2. Step 2: Convert to fraction form
    91,200.16/125,858.28 = 57,210.08/x
  3. Step 3: Cross multiply
    91,200.16x = 125,858.28 × 57,210.08
  4. Step 4: Simplify right side
    91,200.16x = 7,200,362,267.46
  5. Step 5: Solve for x
    x = 7,200,362,267.46/91,200.16
  6. Step 6: Final answer
    x = 78,951.20

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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.