Home / 99,313.48-137,045.46-56,870.92

Finding the Fourth Proportional to 99,313.48, 137,045.46 and 56,870.92

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Solution

The fourth proportional to 99,313.48, 137,045.46 and 56,870.92 is: 78,477.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,313.48 : 137,045.46 = 56,870.92 : x
  2. Step 2: Convert to fraction form
    99,313.48/137,045.46 = 56,870.92/x
  3. Step 3: Cross multiply
    99,313.48x = 137,045.46 × 56,870.92
  4. Step 4: Simplify right side
    99,313.48x = 7,793,901,392.02
  5. Step 5: Solve for x
    x = 7,793,901,392.02/99,313.48
  6. Step 6: Final answer
    x = 78,477.78

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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.