Home / 90,446.40-124,877.84-56,506.56

Finding the Fourth Proportional to 90,446.40, 124,877.84 and 56,506.56

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Solution

The fourth proportional to 90,446.40, 124,877.84 and 56,506.56 is: 78,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,446.40 : 124,877.84 = 56,506.56 : x
  2. Step 2: Convert to fraction form
    90,446.40/124,877.84 = 56,506.56/x
  3. Step 3: Cross multiply
    90,446.40x = 124,877.84 × 56,506.56
  4. Step 4: Simplify right side
    90,446.40x = 7,056,417,158.63
  5. Step 5: Solve for x
    x = 7,056,417,158.63/90,446.40
  6. Step 6: Final answer
    x = 78,017.67

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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.