Home / 55,931.80-83,811.30-48,501.40

Finding the Fourth Proportional to 55,931.80, 83,811.30 and 48,501.40

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Solution

The fourth proportional to 55,931.80, 83,811.30 and 48,501.40 is: 72,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,931.80 : 83,811.30 = 48,501.40 : x
  2. Step 2: Convert to fraction form
    55,931.80/83,811.30 = 48,501.40/x
  3. Step 3: Cross multiply
    55,931.80x = 83,811.30 × 48,501.40
  4. Step 4: Simplify right side
    55,931.80x = 4,064,965,385.82
  5. Step 5: Solve for x
    x = 4,064,965,385.82/55,931.80
  6. Step 6: Final answer
    x = 72,677.18

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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.