Home / 98,754.89-136,281.17-56,312.51

Finding the Fourth Proportional to 98,754.89, 136,281.17 and 56,312.51

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Solution

The fourth proportional to 98,754.89, 136,281.17 and 56,312.51 is: 77,710.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,754.89 : 136,281.17 = 56,312.51 : x
  2. Step 2: Convert to fraction form
    98,754.89/136,281.17 = 56,312.51/x
  3. Step 3: Cross multiply
    98,754.89x = 136,281.17 × 56,312.51
  4. Step 4: Simplify right side
    98,754.89x = 7,674,334,466.87
  5. Step 5: Solve for x
    x = 7,674,334,466.87/98,754.89
  6. Step 6: Final answer
    x = 77,710.93

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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.