Home / 98,971.32-136,581.93-56,529.93

Finding the Fourth Proportional to 98,971.32, 136,581.93 and 56,529.93

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Solution

The fourth proportional to 98,971.32, 136,581.93 and 56,529.93 is: 78,012.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,971.32 : 136,581.93 = 56,529.93 : x
  2. Step 2: Convert to fraction form
    98,971.32/136,581.93 = 56,529.93/x
  3. Step 3: Cross multiply
    98,971.32x = 136,581.93 × 56,529.93
  4. Step 4: Simplify right side
    98,971.32x = 7,720,966,942.16
  5. Step 5: Solve for x
    x = 7,720,966,942.16/98,971.32
  6. Step 6: Final answer
    x = 78,012.16

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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.