Home / 97,430.64-134,482.32-57,146.10

Finding the Fourth Proportional to 97,430.64, 134,482.32 and 57,146.10

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Solution

The fourth proportional to 97,430.64, 134,482.32 and 57,146.10 is: 78,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,430.64 : 134,482.32 = 57,146.10 : x
  2. Step 2: Convert to fraction form
    97,430.64/134,482.32 = 57,146.10/x
  3. Step 3: Cross multiply
    97,430.64x = 134,482.32 × 57,146.10
  4. Step 4: Simplify right side
    97,430.64x = 7,685,140,106.95
  5. Step 5: Solve for x
    x = 7,685,140,106.95/97,430.64
  6. Step 6: Final answer
    x = 78,878.06

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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.