Home / 99,625.50-137,482.30-54,303.48

Finding the Fourth Proportional to 99,625.50, 137,482.30 and 54,303.48

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Solution

The fourth proportional to 99,625.50, 137,482.30 and 54,303.48 is: 74,938.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,625.50 : 137,482.30 = 54,303.48 : x
  2. Step 2: Convert to fraction form
    99,625.50/137,482.30 = 54,303.48/x
  3. Step 3: Cross multiply
    99,625.50x = 137,482.30 × 54,303.48
  4. Step 4: Simplify right side
    99,625.50x = 7,465,767,328.40
  5. Step 5: Solve for x
    x = 7,465,767,328.40/99,625.50
  6. Step 6: Final answer
    x = 74,938.32

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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.