Home / 66,444.32-99,665.40-31,409.12

Finding the Fourth Proportional to 66,444.32, 99,665.40 and 31,409.12

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Solution

The fourth proportional to 66,444.32, 99,665.40 and 31,409.12 is: 47,113.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,444.32 : 99,665.40 = 31,409.12 : x
  2. Step 2: Convert to fraction form
    66,444.32/99,665.40 = 31,409.12/x
  3. Step 3: Cross multiply
    66,444.32x = 99,665.40 × 31,409.12
  4. Step 4: Simplify right side
    66,444.32x = 3,130,402,508.45
  5. Step 5: Solve for x
    x = 3,130,402,508.45/66,444.32
  6. Step 6: Final answer
    x = 47,113.17

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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.