Home / 55,980.16-83,970.08-14,426.88

Finding the Fourth Proportional to 55,980.16, 83,970.08 and 14,426.88

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Solution

The fourth proportional to 55,980.16, 83,970.08 and 14,426.88 is: 21,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,980.16 : 83,970.08 = 14,426.88 : x
  2. Step 2: Convert to fraction form
    55,980.16/83,970.08 = 14,426.88/x
  3. Step 3: Cross multiply
    55,980.16x = 83,970.08 × 14,426.88
  4. Step 4: Simplify right side
    55,980.16x = 1,211,426,267.75
  5. Step 5: Solve for x
    x = 1,211,426,267.75/55,980.16
  6. Step 6: Final answer
    x = 21,640.28

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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.