Home / 98,569.32-136,026.96-56,128.02

Finding the Fourth Proportional to 98,569.32, 136,026.96 and 56,128.02

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Solution

The fourth proportional to 98,569.32, 136,026.96 and 56,128.02 is: 77,457.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,569.32 : 136,026.96 = 56,128.02 : x
  2. Step 2: Convert to fraction form
    98,569.32/136,026.96 = 56,128.02/x
  3. Step 3: Cross multiply
    98,569.32x = 136,026.96 × 56,128.02
  4. Step 4: Simplify right side
    98,569.32x = 7,634,923,931.42
  5. Step 5: Solve for x
    x = 7,634,923,931.42/98,569.32
  6. Step 6: Final answer
    x = 77,457.41

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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.